Remove versionGuard error while we are not versioning

index.js

@@ -9,7 +9,8 @@ bitcore.versionGuard = function(version) {
     var message = 'More than one instance of bitcore-lib-zcash found. ' +
       'Please make sure to require bitcore-lib-zcash and check that submodules do' +
       ' not also include their own bitcore-lib-zcash dependency.';
-    throw new Error(message);
+    // TODO: put this back if we start versioning again
+    //throw new Error(message);
   }
 };
 bitcore.versionGuard(global._bitcore);