remove redundant json

Author: Kelly Selden

src/get-default-blueprint-name-override.js

@@ -20,7 +20,7 @@ module.exports = async function getBlueprintNameOverride(packageNameOrPath, cwd
     packageJson = JSON.parse(await fs.readFile(localPackageJsonPath));
   } else {
     try {
-      packageJson = await npm.json('view', packageNameOrPath, '--json');
+      packageJson = await npm.json('view', packageNameOrPath);
     } catch (err) {
       return null;
     }