remove stray property

Author: Slava

src/execution/execute.js

@@ -209,16 +209,13 @@ function buildExecutionContext(
     rawVariableValues || {}
   );
 
-  const executionPath = [];
-
   return {
     schema,
     fragments,
     rootValue,
     contextValue,
     operation,
     variableValues,
-    executionPath,
     errors
   };
 }