Disable code signing on macOS

Lib/Configurations/Base.xcconfig

@@ -27,6 +27,8 @@ VERSIONING_SYSTEM = "apple-generic";
 VERSION_INFO_PREFIX = "";
 
 CODE_SIGN_IDENTITY[sdk=iphoneos*] = iPhone Developer;
+CODE_SIGNING_REQUIRED[sdk=macosx] = NO;
+
 MACOSX_DEPLOYMENT_TARGET = 10.9;
 IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 WATCHOS_DEPLOYMENT_TARGET = 2.0;