Revert "Fix initialism errors (PR-3) (#17062)" (#17202)

This reverts commit ea61458f16. This was causing panic in the plugins because the client and the plugin API changed with this PR

plugin/interface_generator/main.go

@@ -470,7 +470,7 @@ func generateHooksGlue(info *PluginInterfaceInfo) {
 			return FieldListToRecordSuccess(structPrefix, fields)
 		},
 		"obscure": func(name string) string {
-			return "Z" + name
+			return "Z_" + name
 		},
 	}