Make security the default for the secpick script

Why:

* The current workflow uses security not dev.

This change addresses the need by:

* Replace dev with security as the default
* Use dev as the example for the remote flag and update text for flag

bin/secpick

@@ -12,10 +12,8 @@ module Secpick
   BRANCH_PREFIX = 'security'.freeze
   STABLE_SUFFIX = 'stable'.freeze
 
-  DEFAULT_REMOTE = 'dev'.freeze
-  SECURITY_REMOTE = 'security'.freeze
+  DEFAULT_REMOTE = 'security'.freeze
 
-  NEW_MR_URL = 'https://dev.gitlab.org/gitlab/gitlabhq/-/merge_requests/new'.freeze
   SECURITY_MR_URL = 'https://gitlab.com/gitlab-org/security/gitlab/-/merge_requests/new'.freeze
 
   class SecurityFix
@@ -66,18 +64,10 @@ module Secpick
     end
 
     def new_mr_url
-      if @options[:security_remote]
-        if ee?
-          SECURITY_MR_URL
-        else
-          SECURITY_MR_URL.sub('/gitlab/', '/gitlab-foss/')
-        end
+      if ee?
+        SECURITY_MR_URL
       else
-        if ee?
-          NEW_MR_URL.sub('gitlabhq', 'gitlab-ee')
-        else
-          NEW_MR_URL
-        end
+        SECURITY_MR_URL.sub('/gitlab/', '/gitlab-foss/')
       end
     end
 
@@ -124,19 +114,10 @@ module Secpick
             options[:sha] = sha
           end
 
-          opts.on('-r', '--remote abcd', 'Git remote name of dev.gitlab.org (optional, defaults to `dev`)') do |remote|
+          opts.on('-r', '--remote dev', "Git remote name of security repo (optional, defaults to `#{DEFAULT_REMOTE}`)") do |remote|
             options[:remote] = remote
           end
 
-          opts.on('--security-remote', 'Use the new Security group-based workflow on gitlab.com (note: mutually exclusive to --remote)') do
-            unless options[:remote].nil?
-              abort('Cannot use --security-remote with --remote')
-            end
-
-            options[:security_remote] = true
-            options[:remote] = SECURITY_REMOTE
-          end
-
           opts.on('-d', '--dry-run', 'Only show Git commands, without calling them') do
             options[:try] = true
           end
@@ -144,11 +125,6 @@ module Secpick
           opts.on('-h', '--help', 'Displays Help') do
             puts opts
 
-            puts
-            puts 'NOTE: If `--security-remote` is used, commands will default ' \
-              'to using a `security` remote, and merge requests will be created ' \
-              'on gitlab.com/gitlab-org/security/ rather than dev.gitlab.org.'
-
             exit
           end
         end