am f02dfc26: Use real rssi value for rssi-approx command (http://b/2213699)

Merge commit 'f02dfc26f9c2a492e066582e7c739e11b0e88ff5' into eclair-mr2

* commit 'f02dfc26f9c2a492e066582e7c739e11b0e88ff5':
  Use real rssi value for rssi-approx command (http://b/2213699)
diff --git a/os_unix.c b/os_unix.c
index edb160a..8498b15 100644
--- a/os_unix.c
+++ b/os_unix.c
@@ -181,7 +181,7 @@
 	/* We ignore errors here since errors are normal if we
 	 * are already running as non-root.
 	 */
-	gid_t groups[] = { AID_INET, AID_WIFI, AID_KEYSTORE };
+	gid_t groups[] = { AID_INET, AID_WIFI };
 	setgroups(sizeof(groups)/sizeof(groups[0]), groups);
 
 	prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);