refactor: simplify validate statement

Author: dani-sc

lib/sgcPrompt.js

@@ -27,13 +27,7 @@ const sgcPrompt = () => {
     type: 'input',
     name: 'description',
     message: 'Enter your commit message:',
-    validate: input => new Promise((resolve, reject) => {
-      if (input) {
-        resolve(true);
-      } else {
-        reject('A commit message is mandatory!');
-      }
-    }),
+    validate: input => (input ? true : 'A commit message is mandatory!'),
   }, {
     type: 'confirm',
     name: 'moreInfo',