Do not initialize YAML processor with project full path

app/models/ci/pipeline.rb

@@ -337,7 +337,7 @@ module Ci
       return @config_processor if defined?(@config_processor)
       @config_processor ||= begin
-        Gitlab::Ci::YamlProcessor.new(ci_yaml_file, project.full_path)
+        Gitlab::Ci::YamlProcessor.new(ci_yaml_file)
       rescue Gitlab::Ci::YamlProcessor::ValidationError, Psych::SyntaxError => e
         self.yaml_errors = e.message
         nil

lib/gitlab/ci/yaml_processor.rb

@@ -5,12 +5,11 @@ module Gitlab
       include Gitlab::Ci::Config::Entry::LegacyValidationHelpers
-      attr_reader :path, :cache, :stages, :jobs
-      def initialize(config, path = nil)
+      attr_reader :cache, :stages, :jobs
+      def initialize(config)
         @ci_config = Gitlab::Ci::Config.new(config)
         @config = @ci_config.to_hash
-        @path = path
         unless @ci_config.valid?
           raise ValidationError, @ci_config.errors.first