package/ti-sgx-um: drop ti-sgx-libgbm comment

Commit 814bfc5ec1ab49188d1c8cb7f0d8d857b92d6a03 forgot to drop comment
from ti-sgx-um

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ti-sgx-um/Config.in

@@ -9,7 +9,7 @@ config BR2_PACKAGE_TI_SGX_UM
 	bool "ti-sgx-um"
 	depends on BR2_PACKAGE_TI_SGX_KM
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libdrm
-	depends on BR2_PACKAGE_HAS_UDEV # ti-sgx-libgbm
+	depends on BR2_PACKAGE_HAS_UDEV
 	# pre-built binaries
 	depends on BR2_TOOLCHAIN_USES_GLIBC
 	select BR2_PACKAGE_LIBDRM