Revert "Rename the font file with PostScript name based file name"

Revert "Update ImageGenerator to match the latest font names."

Revert "Rename font file with PostScript based names"

Revert submission 1606485-rename_fonts

Reason for revert: font file name requirement was removed.

Reverted Changes:
Iab8b9d65a:Update ImageGenerator to match the latest font nam...
Ifbe99d68c:Rename the font file with PostScript name based fi...
I307c21531:Rename font file with PostScript based names

Change-Id: I95a52403590127f1762c7551edff9805096daf79
Merged-In: I6bd807ce0df6cd81e44bf89918ac4b7b01c27ae1