Revert "mako: modem: set default network mode to GSM/WCDMA/LTE"

This Reverts commit e1e510978a605230f8a89427f9d773c11100c0d8

Conflicts:
    device.mk

Change-Id: Ifbd5ff7497bb7938bc01ef2817bd1c1193748fa4
diff --git a/device.mk b/device.mk
index de0ca65..f5f7834 100644
--- a/device.mk
+++ b/device.mk
@@ -176,8 +176,7 @@
 	rild.libpath=/system/lib/libril-qc-qmi-1.so
 
 PRODUCT_PROPERTY_OVERRIDES += \
-	drm.service.enabled=true \
-	ro.telephony.default_network=9
+	drm.service.enabled=true
 
 PRODUCT_PROPERTY_OVERRIDES += \
 	wifi.interface=wlan0 \