V4L/DVB (5624): Radio-maestro.c cleanup
V4L/DVB (5624): Radio-maestro.c cleanup

Removed unnecessary semaphore.

Signed-off-by:  Douglas Schilling Landgraf <cb5f9630225b7afa1e13760d30868c8ce876fc60@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@infradead.org>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas