linux-yocto: remove emenlow from meta-yocto bbappend (2.6.37 version)

The emenlow BSP is now contained in the meta-intel layer.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

meta-yocto/recipes-kernel/linux/linux-yocto_2.6.37.bbappend

@@ -3,7 +3,6 @@ KMACHINE_routerstationpro = "yocto/standard/routerstationpro"
 KMACHINE_mpc8315e-rdb = "yocto/standard/fsl-mpc8315e-rdb"
 KMACHINE_beagleboard = "yocto/standard/beagleboard"
 
-SRCREV_machine_emenlow = "398d5adac19cb411cd80753e177769f6a666a7e7"
 SRCREV_machine_atom-pc = "fce17f046d3756045e4dfb49221d1cf60fcae329"
 SRCREV_machine_routerstationpro = "8f84c1aec0907766ab6d6ac79fcc3b7b9ce79b70"
 SRCREV_machine_mpc8315e-rdb = "bda049366dad5fc3c7ba229cd4633992581e7a1f"