Revert "Added sahlnaskh arabic font to Android.mk & fonts.mk files to actually get the font installed"

This reverts commit f2b1475ea5e0f38cd72ef768907eba9488eff985.

Change-Id: I3a2979fdec0baaa3a856deb25e0ad9e8424c7174
Merge "Revert "Added sahlnaskh arabic font to Android.mk & fonts.mk files to actually get the font installed"" into kitkat-caf