remove dead isFirewallEnabled()

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Idd49b3c4b37f82e314edfdbcf4365c1ffac2fc60
diff --git a/server/FirewallController.cpp b/server/FirewallController.cpp
index 47975dd..57c6ac2 100644
--- a/server/FirewallController.cpp
+++ b/server/FirewallController.cpp
@@ -113,11 +113,6 @@
     return flushRules();
 }
 
-int FirewallController::isFirewallEnabled(void) {
-    // TODO: verify that rules are still in place near top
-    return -1;
-}
-
 int FirewallController::setInterfaceRule(const char* iface, FirewallRule rule) {
     if (mFirewallType == DENYLIST) {
         // Unsupported in DENYLIST mode
diff --git a/server/FirewallController.h b/server/FirewallController.h
index 45ae082..a755830 100644
--- a/server/FirewallController.h
+++ b/server/FirewallController.h
@@ -44,7 +44,6 @@
 
   int setFirewallType(FirewallType);
   int resetFirewall(void);
-  int isFirewallEnabled(void);
 
   /* Match traffic going in/out over the given iface. */
   int setInterfaceRule(const char*, FirewallRule);