[TargetIntegrator] Remove unused method

lib/cocoapods/installer/user_project_integrator/target_integrator.rb

@@ -69,13 +69,6 @@ module Pod
           @user_project ||= Xcodeproj::Project.open(target.user_project_path)
         end
 
-        # Read the pods project from the disk to ensure that it is up to date as
-        # other TargetIntegrators might have modified it.
-        #
-        def pods_project
-          @pods_project ||= Xcodeproj::Project.open(target.sandbox.project_path)
-        end
-
         # @return [String] a string representation suitable for debugging.
         #
         def inspect