[optimizing compiler] Implement inline x86 FP '%'

Replace the calls to fmod/fmodf by inline code as is done in the Quick
compiler.

Remove the quick fmod/fmodf runtime entries, as they are no longer in
use.

64 bit code generator Move() routine needed to be enhanced to handle
constants, as Location::Any() allows them to be generated.

Change-Id: I6b6a42f6faeed4b0b3c940453e487daf5b25d184
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>