Notepad: Update icons and remove unused ones

Special thanks to amogh420 @ XDA-Developers

Change-Id: I1ddde23b9ee113df15b7a2af02e03e3a2b3b5265

update

Change-Id: I1c89696bd24153695af75f95dd60957183d388aa
Merge "Notepad: Update icons and remove unused ones" into jb-mr2_mkt