emlog: remove linux dependency

The dependency on linux is automatically added by the kernel-module
infrastructure, so there is no need to explicit add it in the emlog
package.

Thanks to Arnout for spotting the issue.

Reported-by: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/emlog/emlog.mk

@@ -6,7 +6,6 @@
 
 EMLOG_VERSION = bd32494ad757c3d37469877aaf99ced3ee6ca3f8
 EMLOG_SITE = $(call github,nicupavel,emlog,$(EMLOG_VERSION))
-EMLOG_DEPENDENCIES = linux
 EMLOG_LICENSE = GPLv2
 EMLOG_LICENSE_FILES = COPYING