update contributing.md

Author: akgmage

CONTRIBUTING.md

@@ -108,13 +108,3 @@ func SmallestDifference(array1, array2 []int) []int {
 }
 
 ```
-
-## What if the problem you want to add is not present in the issue?
-
-- You can suggest an idea for this project under issues tab (add list of questions you think it is important, it will be assigned to you)
-- You can directly make a PR against dev branch with the proposed problems with appropriate comments and description
-
-## What if the changes are inconsistent?
-
-- Keep pulling from origin/main see below, this way you will be up to date with the latest changes in main branch
-- git pull origin main