x86/platform/intel-mid: Remove Moorestown code

x86/platform/intel-mid: Remove Moorestown code

The Moorestown support code was removed by:

  a8359e411eb ("x86/mid: Remove Intel Moorestown").

Remove this leftover as well.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170105130235.177792-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>