Makefile: Fix uninstall issue introduced at 089d607 and 830eb1a.
Makefile: Fix uninstall issue introduced at 089d607 and 830eb1a.

l-smash/l-smash,silverfilain/L-SMASH,maki-rxrz/L-SMASH,silverfilain/L-SMASH,maki-rxrz/L-SMASH,l-smash/l-smash,silverfilain/L-SMASH,l-smash/l-smash