Removing ci_variables_complex_expressions feature flag and deprecated code branches

1 files changed, 3 insertions, 8 deletions

diff --git a/lib/gitlab/ci/pipeline/expression/lexeme/pattern.rb b/lib/gitlab/ci/pipeline/expression/lexeme/pattern.rb
index e4cf360a1c1..0212fa9d661 100644
--- a/lib/gitlab/ci/pipeline/expression/lexeme/pattern.rb
+++ b/lib/gitlab/ci/pipeline/expression/lexeme/pattern.rb
@@ -8,11 +8,10 @@ module Gitlab
           require_dependency 're2'
 
           class Pattern < Lexeme::Value
-            PATTERN     = %r{^/.+/[ismU]*$}.freeze
-            NEW_PATTERN = %r{^\/([^\/]|\\/)+[^\\]\/[ismU]*}.freeze
+            PATTERN = %r{^\/([^\/]|\\/)+[^\\]\/[ismU]*}.freeze
 
             def initialize(regexp)
-              @value = self.class.eager_matching_with_escape_characters? ? regexp.gsub(/\\\//, '/') : regexp
+              @value = regexp.gsub(/\\\//, '/')
 
               unless Gitlab::UntrustedRegexp::RubySyntax.valid?(@value)
                 raise Lexer::SyntaxError, 'Invalid regular expression!'
@@ -26,16 +25,12 @@ module Gitlab
             end
 
             def self.pattern
-              eager_matching_with_escape_characters? ? NEW_PATTERN : PATTERN
+              PATTERN
             end
 
             def self.build(string)
               new(string)
             end
-
-            def self.eager_matching_with_escape_characters?
-              Feature.enabled?(:ci_variables_complex_expressions, default_enabled: true)
-            end
           end
         end
       end