extmod/vfs_fat: Remove MICROPY_FSUSERMOUNT_ADHOC config option.

extmod/vfs_fat_file.c

@@ -25,9 +25,7 @@
  */
 
 #include "py/mpconfig.h"
-// *_ADHOC part is for cc3200 port which doesn't use general uPy
-// infrastructure and instead duplicates code. TODO: Resolve.
-#if MICROPY_VFS || MICROPY_FSUSERMOUNT || MICROPY_FSUSERMOUNT_ADHOC
+#if MICROPY_VFS || MICROPY_FSUSERMOUNT
 
 #include <stdio.h>
 #include <errno.h>

extmod/vfs_fat_misc.c

@@ -25,9 +25,7 @@
  */
 
 #include "py/mpconfig.h"
-// *_ADHOC part is for cc3200 port which doesn't use general uPy
-// infrastructure and instead duplicates code. TODO: Resolve.
-#if MICROPY_VFS_FAT || MICROPY_FSUSERMOUNT || MICROPY_FSUSERMOUNT_ADHOC
+#if MICROPY_VFS_FAT || MICROPY_FSUSERMOUNT
 
 #include <string.h>
 #include "py/nlr.h"