genericx86: disable USB autosuspend

USB autosuspend doesn't reliably work with arbitrary hardware, so don't enable
it.

(From meta-yocto rev: 587734848662beb03a699b370470497e4caa2ac1)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-yocto-bsp/conf/machine/genericx86.conf

@@ -31,8 +31,6 @@ MACHINE_EXTRA_RRECOMMENDS = "kernel-modules eee-acpi-scripts linux-firmware v86d
 
 IMAGE_FSTYPES ?= "ext3 cpio.gz live"
 
-APPEND += "usbcore.autosuspend=1"
-
 GLIBC_ADDONS = "nptl"
 
 EXTRA_OECONF_append_pn-matchbox-panel-2 = " --with-battery=acpi"