remove typos and multiple declarations

Change-Id: Iff32874c2f801519b57f19a3cc1c2c76b7c7f6fa
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Revert: libm: Add a proper sincos() implementation

    Add a proper sincos() implementation that unifies the common
    calculations for sin and cos instead of running them twice.

    This should cause a speedup even in code not using that
    (fairly uncommon) function because gcc can optimize separate
    sin() and cos() calls into sincos() calls.

Change-Id: I51aa2c1c05ba792c19810d01b2de4ee1d1188dcb
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
revert cortex string optimization routines for now

Change-Id: I410bdef93efd51277b494bde0300a01c49e926f7
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>

Conflicts:
	libc/Android.mk