Revert "TRIM support by Lanchon"

This reverts commit 39ed57f67d5adb6c6e0305af60fc38b0c4656e98.
Revert suppression of ERASE/TRIM/DISCARD eMMC commands.
Current kernel bugfix status:
-Brickbug: has fix
-MAG2GA TRIM bug: has fi
-Wear Leveling bug: HAS NO FIX
Source:
https://github.com/Lanchon/BrickbugAftermath-SGS2/blob/cm-11.0/patches/kernel_samsung_smdk4412.patch
[MMC] Patch the firmware of certain Samsung emmc parts to fix a bug
Patch the firmware in certain Samsung emmc chips after every power-on
to workaround a bug in the wear leveling code.  Patch provided by Samsung
Semiconductor, and the code to apply the patch was originally written
by Jeonghwan Min of Samsung.

Change-Id: Id40cfb8f68842fc4a47f60ae032f1b49c0fcb65e
Signed-off-by: Ken Sumrall <ksumrall@android.com>

Adapted by Lanchon for CM11 M9 android_kernel_samsung_smdk4412
http://wiki.cyanogenmod.org/w/EMMC_Bugs#Samsung_eMMC_wear_leveling_data_corruption_bug