LibJS: Remove quotes from RegExpCompileError message

They look a bit out of place, especially for multi-line error messages.

Author: linusg

Libraries/LibJS/Runtime/ErrorTypes.h

@@ -146,7 +146,7 @@
     M(ReflectBadArgumentsList, "Arguments list must be an object")                                                                      \
     M(ReflectBadNewTarget, "Optional third argument of Reflect.construct() must be a constructor")                                      \
     M(ReflectBadDescriptorArgument, "Descriptor argument is not an object")                                                             \
-    M(RegExpCompileError, "RegExp compile error: '{}'")                                                                                 \
+    M(RegExpCompileError, "RegExp compile error: {}")                                                                                   \
     M(RegExpObjectBadFlag, "Invalid RegExp flag '{}'")                                                                                  \
     M(RegExpObjectRepeatedFlag, "Repeated RegExp flag '{}'")                                                                            \
     M(StringRawCannotConvert, "Cannot convert property 'raw' to object from {}")                                                        \