MDEV-31118: Remove version-substvar-for-external-package problems

In debian/control file there is several mariadb-*-10.9 Conflicts
or Replaces that which are not neede on MariaDB 10.9 anymore
as there is not suffix anymore.

Package libmariadbclient-dev is part of Ubuntu and it's
not build with official package so there can't be
variable: '${source:Version}' which is used with packages
that are part of package.

NOTE TO MERGER: This is only up-to MariaDB 10.10.

debian/control

@@ -341,7 +341,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-client-10.6,
           mariadb-client-10.7,
           mariadb-client-10.8,
-          mariadb-client-10.9 (<< ${source:Version}),
           mariadb-client-5.1,
           mariadb-client-5.2,
           mariadb-client-5.3,
@@ -371,7 +370,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-server-core-10.6,
           mariadb-server-core-10.7,
           mariadb-server-core-10.8,
-          mariadb-server-core-10.9 (<< ${source:Version}),
           mysql-client (<< 5.0.51),
           mysql-client-5.0,
           mysql-client-5.1,
@@ -423,7 +421,6 @@ Conflicts: mariadb-client (<< ${source:Version}),
            mariadb-client-10.6,
            mariadb-client-10.7,
            mariadb-client-10.8,
-           mariadb-client-10.9 (<< ${source:Version}),
            mariadb-client-5.1,
            mariadb-client-5.2,
            mariadb-client-5.3,
@@ -453,7 +450,6 @@ Breaks: mariadb-client-core (<< ${source:Version}),
         mariadb-client-core-10.6,
         mariadb-client-core-10.7,
         mariadb-client-core-10.8,
-        mariadb-client-core-10.9 (<< ${source:Version}),
         mariadb-server (<< ${source:Version}),
         mariadb-server-10.0,
         mariadb-server-10.1,
@@ -464,7 +460,6 @@ Breaks: mariadb-client-core (<< ${source:Version}),
         mariadb-server-10.6,
         mariadb-server-10.7,
         mariadb-server-10.8,
-        mariadb-server-10.9 (<< ${source:Version}),
         mariadb-server-core (<< ${source:Version}),
         mariadb-server-core-10.0,
         mariadb-server-core-10.1,
@@ -496,7 +491,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-client-10.6,
           mariadb-client-10.7,
           mariadb-client-10.8,
-          mariadb-client-10.9 (<< ${source:Version}),
           mariadb-client-5.1,
           mariadb-client-5.2,
           mariadb-client-5.3,
@@ -511,7 +505,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-client-core-10.6,
           mariadb-client-core-10.7,
           mariadb-client-core-10.8,
-          mariadb-client-core-10.9 (<< ${source:Version}),
           mariadb-server (<< ${source:Version}),
           mariadb-server-10.0,
           mariadb-server-10.1,
@@ -522,7 +515,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-server-10.6,
           mariadb-server-10.7,
           mariadb-server-10.8,
-          mariadb-server-10.9 (<< ${source:Version}),
           mariadb-server-core (<< ${source:Version}),
           mariadb-server-core-10.0,
           mariadb-server-core-10.1,
@@ -533,7 +525,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-server-core-10.6,
           mariadb-server-core-10.7,
           mariadb-server-core-10.8,
-          mariadb-server-core-10.9 (<< ${source:Version}),
           mysql-client (<< 5.0.51),
           mysql-client-5.0,
           mysql-client-5.1,
@@ -589,7 +580,6 @@ Conflicts: mariadb-server-core-10.0,
            mariadb-server-core-10.6,
            mariadb-server-core-10.7,
            mariadb-server-core-10.8,
-           mariadb-server-core-10.9 (<< ${source:Version}),
            mariadb-server-core-5.1,
            mariadb-server-core-5.2,
            mariadb-server-core-5.3,
@@ -612,7 +602,6 @@ Breaks: mariadb-client (<< ${source:Version}),
         mariadb-client-10.6,
         mariadb-client-10.7,
         mariadb-client-10.8,
-        mariadb-client-10.9 (<< ${source:Version}),
         mariadb-server (<< ${source:Version}),
         mariadb-server-10.0,
         mariadb-server-10.1,
@@ -623,7 +612,6 @@ Breaks: mariadb-client (<< ${source:Version}),
         mariadb-server-10.6,
         mariadb-server-10.7,
         mariadb-server-10.8,
-        mariadb-server-10.9 (<< ${source:Version}),
         mysql-client-5.5,
         mysql-server-5.5,
         mysql-server-5.6,
@@ -642,7 +630,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-client-10.6,
           mariadb-client-10.7,
           mariadb-client-10.8,
-          mariadb-client-10.9 (<< ${source:Version}),
           mariadb-server (<< ${source:Version}),
           mariadb-server-10.0,
           mariadb-server-10.1,
@@ -653,7 +640,6 @@ Replaces: mariadb-client (<< ${source:Version}),
           mariadb-server-10.6,
           mariadb-server-10.7,
           mariadb-server-10.8,
-          mariadb-server-10.9 (<< ${source:Version}),
           mariadb-server-core-10.0,
           mariadb-server-core-10.1,
           mariadb-server-core-10.2,
@@ -728,7 +714,6 @@ Conflicts: mariadb-server (<< ${source:Version}),
            mariadb-server-10.6,
            mariadb-server-10.7,
            mariadb-server-10.8,
-           mariadb-server-10.9 (<< ${source:Version}),
            mariadb-server-5.1,
            mariadb-server-5.2,
            mariadb-server-5.3,
@@ -763,7 +748,6 @@ Replaces: handlersocket-mysql-5.5,
           mariadb-client-10.6,
           mariadb-client-10.7,
           mariadb-client-10.8,
-          mariadb-client-10.9 (<< ${source:Version}),
           mariadb-server (<< ${source:Version}),
           mariadb-server-10.0,
           mariadb-server-10.1,
@@ -774,7 +758,6 @@ Replaces: handlersocket-mysql-5.5,
           mariadb-server-10.6,
           mariadb-server-10.7,
           mariadb-server-10.8,
-          mariadb-server-10.9 (<< ${source:Version}),
           mariadb-server-5.1,
           mariadb-server-5.2,
           mariadb-server-5.3,