Disable the "SIM cards" tile in new Network & internet page

When settings_network_and_internet_v2 is enabled, don't show the old
"SIM cards" tile for managing multiple SIM cards on the Network &
internet page, since we now have new UI for this.

Bug: 116349402
Test: manual (put device into dual-sim dual-standby mode, and enable the
'settings_network_and_internet_v2' flag in the FeatureFlags section of
Developer options)

Change-Id: Icc0d723b634f15ad831e38b783ae226a7717f674