test: Drop conditional compilation for suites

test: Drop conditional compilation for suites

This is not needed anymore. If a test suite is not built, then it will
have no linker-list entries. So we can just check for that and know that
the suite is not present.

This allows removal of the #ifdefs and the need to keep them in sync
with the associated Makefile rules, which has actually failed, since the
help does not match what commands are actually present.

Signed-off-by: Simon Glass <sjg@chromium.org>