kbuild: do not remove empty *.symtypes explicitly

Presumably, 'test -s $@ || rm -f $@' intends to remove the output when
the genksyms command fails.

It is unneeded because .DELETE_ON_ERROR automatically removes the output
on failure.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>

scripts/Makefile.build

@@ -135,9 +135,7 @@ genksyms = scripts/genksyms/genksyms		\
 cmd_gensymtypes_c = $(CPP) -D__GENKSYMS__ $(c_flags) $< | $(genksyms)
 
 quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
-cmd_cc_symtypes_c =                                                         \
-    $(call cmd_gensymtypes_c,true,$@) >/dev/null;                           \
-    test -s $@ || rm -f $@
+      cmd_cc_symtypes_c = $(call cmd_gensymtypes_c,true,$@) >/dev/null
 
 $(obj)/%.symtypes : $(src)/%.c FORCE
 	$(call cmd,cc_symtypes_c)
@@ -348,9 +346,7 @@ cmd_gensymtypes_S =                                                         \
     $(CPP) -D__GENKSYMS__ $(c_flags) -xc - | $(genksyms)
 
 quiet_cmd_cc_symtypes_S = SYM $(quiet_modtag) $@
-cmd_cc_symtypes_S =                                                         \
-    $(call cmd_gensymtypes_S,true,$@) >/dev/null;                           \
-    test -s $@ || rm -f $@
+      cmd_cc_symtypes_S = $(call cmd_gensymtypes_S,true,$@) >/dev/null
 
 $(obj)/%.symtypes : $(src)/%.S FORCE
 	$(call cmd,cc_symtypes_S)