Revert "Makefile: use old build flags and added -fgraphite flag. performace are higher"

This reverts commit 4a6c4cab3163a0e6cff54372de557df0b659bb52.
Revert "Makefile: improved build flags"

This reverts commit 3ea498d752cee5e14804f650a9001a9c6deed004.