Revert "ASHMEM: restored 2 FIXES to test. can be critical for us."

This reverts commit 95e65e0c60553e3c5fd230d82903d88c3cd6356f.
Revert "Relocated ashmem.c to drivers/staging/android/ as there is it's place."

This reverts commit dd256b61367711ff949d48c565a7cd609a361dbf.