Fixed paste issue after selecting word in inputbox

Fixed paste issue after selecting word in inputbox

[Title] Fixed paste issue after selecting word in inputbox
[Issue#] WEB-2907
[Problem] Copy some text and paste in edit filed, the seleced
   text is not getting replaced insteed getting appended
[Cause] Selection was getting cleared before the paste call
   was made due to with the paste function was not getting the
   selected text so it was appending isteed of replacing the
   text
[Solution] Removed the code for clearing of the text

Change-Id: I24d643abd5d4e6a597c5970c8dea36c20804a869