Bug 1241000 - Enable all wifi emulator test case. r=edgar

dom/wifi/test/marionette/manifest.ini

@@ -10,18 +10,15 @@ qemu = true
 [test_wifi_auto_connect.js]
 [test_wifi_static_ip.js]
 [test_wifi_tethering_wifi_disabled.js]
-skip-if = android_version > '15' # Bug 1203075
 [test_wifi_tethering_wifi_inactive.js]
-skip-if = android_version > '15' # Bug 1203075
 [test_wifi_tethering_wifi_active.js]
-skip-if = android_version > '15' # Bug 1203075
 [test_wifi_manage_server_certificate.js]
 [test_wifi_manage_user_certificate.js]
 [test_wifi_manage_pkcs12_certificate.js]
 [test_wifi_associate_WPA_EAP_PEAP.js]
-disabled = Bug 1173697
+skip-if = android_version < '16' # EAP test not working before KK.
 [test_wifi_associate_WPA_EAP_TTLS.js]
-disabled = Bug 1173697
+skip-if = android_version < '16'
 [test_wifi_associate_WPA_EAP_TLS.js]
-disabled = Bug 1173697
+skip-if = android_version < '16'
 [test_wifi_enable_api.js]