0.5.5: Swift compiler version and remove plist key

AGKit.framework/Headers/AGKit-Swift.h

 #if 0
 #elif defined(__arm64__) && __arm64__
-// Generated by Apple Swift version 5.0.1 effective-4.2 (swiftlang-1001.0.82.4 clang-1001.0.46.5)
+// Generated by Apple Swift version 5.0.1 (swiftlang-1001.0.82.4 clang-1001.0.46.5)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wgcc-compat"
 
@@ -198,7 +198,7 @@ typedef unsigned int swift_uint4  __attribute__((__ext_vector_type__(4)));
 #pragma clang diagnostic pop
 
 #elif defined(__ARM_ARCH_7A__) && __ARM_ARCH_7A__
-// Generated by Apple Swift version 5.0.1 effective-4.2 (swiftlang-1001.0.82.4 clang-1001.0.46.5)
+// Generated by Apple Swift version 5.0.1 (swiftlang-1001.0.82.4 clang-1001.0.46.5)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wgcc-compat"