cmake: Disable Framework code signing at build time

Frameworks should be archived and exported (where they will be
codesigned by Xcode) or shipped within an App bundle where Xcode will
also take care of it.

cmake/macos/helpers.cmake

@@ -196,11 +196,13 @@ function(set_target_properties_obs target)
         PROPERTIES FRAMEWORK_VERSION A
                    MACOSX_FRAMEWORK_IDENTIFIER com.obsproject.${target}
                    MACOSX_FRAMEWORK_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/cmake/macos/Info.plist.in"
-                   XCODE_ATTRIBUTE_SKIP_INSTALL YES)
+                   XCODE_ATTRIBUTE_SKIP_INSTALL YES
+                   XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+                   XCODE_ATTRIBUTE_DEVELOPMENT_TEAM "")
+    else()
+      _add_entitlements()
     endif()
 
-    _add_entitlements()
-
     set_property(GLOBAL APPEND PROPERTY _OBS_FRAMEWORKS ${target})
     set_property(GLOBAL APPEND PROPERTY _OBS_DEPENDENCIES ${target})
   elseif(target_type STREQUAL MODULE_LIBRARY)