usb: gadget: fsl_qe_udc: remove not implemented callbacks
usb: gadget: fsl_qe_udc: remove not implemented callbacks

All of this callbacks which I remove here are not implemented and return
an error code. The gadget code returns an error code if a callback is
missing so there is no need to implement this twice.

Cc: Li Yang <ecc108c9e46a7124cf4a03d161d413e34ffc15a7@freescale.com>
Signed-off-by: Sebastian Andrzej Siewior <db043b2055cb3a47b2eb0b5aebf4e114a8c24a5a@breakpoint.cc>
Signed-off-by: Felipe Balbi <94dddeeef08b001e003cce128ddc162a4e2c6cd2@ti.com>

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