Remove const from text in RawTextProps

Summary:
Changelog:
[Internal] - Remove const from text in RawTextProps

Reviewed By: shergin

Differential Revision: D22607120

fbshipit-source-id: 18f7ab716342c3e5a8e469b12c5437a617be8583

ReactCommon/fabric/components/text/rawtext/RawTextProps.h

@@ -26,7 +26,7 @@ class RawTextProps : public Props {
 
 #pragma mark - Props
 
-  const std::string text{};
+  std::string text{};
 
 #pragma mark - DebugStringConvertible