Revert "Update dumpvar.mk"

This reverts commit 83ee01a70ac7a69ab6f056b162a94885a4c42a78.
Revert " 4.8 GCC, Strict Aliasing=3, -O3 CFLAG, Opt Flags!!"

This reverts commit bd01dedd73c5cd89a194cf4c60e784bd9dda52fe.