Revert "4-byte align 64-bit values in Get/Set Double/Long for GCC 4.8."

This reverts commit 8baedc8e0fbdc7f6ee90447a70ab79c56695fb05.

Change-Id: I7d7a24dfba564eabfa153efaa36438bacdcb04b4
Revert "4-byte align 64-bit values in Get/Set Double/Long for GCC 4.8."

This reverts commit 6d51996b8f6dbae5a70678936096155fa01509fa.

Conflicts:
	runtime/stack.h

Change-Id: I85c7cceb13934ff8b7e8bc20b6a8e78157cc6072