Since the build system now supports only one toolchain, the
VXMICRO_TOOL environment variable is obsolete. The sanity
check scripts that reference this symbol are revised accordingly.
(Note: As a temporary measure, the main sanity check script
continues to accept the -T option; however, the option has no
effect.)
Change-Id: I383b128b9f5b07164abb7ddeb5a699d819a20316
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>