remove messages app check

lib/cocoapods/target/aggregate_target.rb

@@ -57,7 +57,7 @@ module Pod
       return false if user_project.nil?
       symbol_types = user_targets.map(&:symbol_type).uniq
       raise ArgumentError, "Expected single kind of user_target for #{name}. Found #{symbol_types.join(', ')}." unless symbol_types.count == 1
-      EMBED_FRAMEWORKS_IN_HOST_TARGET_TYPES.include?(symbol_types[0]) && !@host_target_types.include?(:messages_application)
+      EMBED_FRAMEWORKS_IN_HOST_TARGET_TYPES.include?(symbol_types[0])
     end
 
     # @return [String] the label for the target.