Deletes additions excercises from other branch

Author: Della-Bella

Sprint-2/implement/contains.js

@@ -1,11 +1,11 @@
 function contains(someObject, propertyName) {
-     let whatTheRobotFound = someObject[propertyName];
-if (someObject[propertyName] === undefined) {
-  return false;
-} else {
-  return true;
-};
-};
+  let whatTheRobotFound = someObject[propertyName];
+  if (someObject[propertyName] === undefined) {
+    return false;
+  } else {
+    return true;
+  }
+}
 
 module.exports = contains;