Remove the wifi bridge from the flags/config.

This is vestigial; it was only used by libvirt which is now deleted.

Test: Run with qemu, connect to the wifi network
Change-Id: I14a17d8640e4c453c6c8a19120dd70a48c1c2640
diff --git a/host/commands/launch/flags.cc b/host/commands/launch/flags.cc
index 351cb79..cd2e126 100644
--- a/host/commands/launch/flags.cc
+++ b/host/commands/launch/flags.cc
@@ -140,8 +140,6 @@
 DEFINE_string(host_mac_address,
               "42:00:00:00:00:00",
               "MAC address of the wifi interface running on the host.");
-DEFINE_string(wifi_interface, "", // default handled on ParseCommandLine
-              "Network interface to use for wifi");
 DEFINE_string(wifi_tap_name, "", // default handled on ParseCommandLine
               "The name of the tap interface to use for wifi");
 DEFINE_int32(vsock_guest_cid,
@@ -367,7 +365,6 @@
   tmp_config_obj.set_mobile_tap_name(FLAGS_mobile_tap_name);
   ConfigureRil(&tmp_config_obj);
 
-  tmp_config_obj.set_wifi_bridge_name(FLAGS_wifi_interface);
   tmp_config_obj.set_wifi_tap_name(FLAGS_wifi_tap_name);
 
   tmp_config_obj.set_wifi_guest_mac_addr(FLAGS_guest_mac_address);
@@ -442,10 +439,6 @@
   SetCommandLineOptionWithMode("mobile_tap_name",
                                default_mobile_tap_name.c_str(),
                                google::FlagSettingMode::SET_FLAGS_DEFAULT);
-  auto default_wifi_interface = GetPerInstanceDefault("cvd-wbr-");
-  SetCommandLineOptionWithMode("wifi_interface",
-                               default_wifi_interface.c_str(),
-                               google::FlagSettingMode::SET_FLAGS_DEFAULT);
   auto default_wifi_tap_name = GetPerInstanceDefault("cvd-wtap-");
   SetCommandLineOptionWithMode("wifi_tap_name",
                                default_wifi_tap_name.c_str(),
@@ -474,10 +467,6 @@
   SetCommandLineOptionWithMode("mobile_tap_name",
                                default_mobile_tap_name.c_str(),
                                google::FlagSettingMode::SET_FLAGS_DEFAULT);
-  auto default_wifi_interface = GetPerInstanceDefault("cvd-wbr-");
-  SetCommandLineOptionWithMode("wifi_interface",
-                               default_wifi_interface.c_str(),
-                               google::FlagSettingMode::SET_FLAGS_DEFAULT);
   auto default_wifi_tap_name = GetPerInstanceDefault("cvd-wtap-");
   SetCommandLineOptionWithMode("wifi_tap_name",
                                default_wifi_tap_name.c_str(),
diff --git a/host/libs/config/cuttlefish_config.cpp b/host/libs/config/cuttlefish_config.cpp
index ada6dc6..56fc40b 100644
--- a/host/libs/config/cuttlefish_config.cpp
+++ b/host/libs/config/cuttlefish_config.cpp
@@ -111,7 +111,6 @@
 
 const char* kMobileBridgeName = "mobile_bridge_name";
 const char* kMobileTapName = "mobile_tap_name";
-const char* kWifiBridgeName = "wifi_bridge_name";
 const char* kWifiTapName = "wifi_tap_name";
 const char* kWifiGuestMacAddr = "wifi_guest_mac_addr";
 const char* kWifiHostMacAddr = "wifi_host_mac_addr";
@@ -471,14 +470,6 @@
   (*dictionary_)[kMobileBridgeName] = mobile_bridge_name;
 }
 
-std::string CuttlefishConfig::wifi_bridge_name() const {
-  return (*dictionary_)[kWifiBridgeName].asString();
-}
-void CuttlefishConfig::set_wifi_bridge_name(
-    const std::string& wifi_bridge_name) {
-  (*dictionary_)[kWifiBridgeName] = wifi_bridge_name;
-}
-
 std::string CuttlefishConfig::wifi_guest_mac_addr() const {
   return (*dictionary_)[kWifiGuestMacAddr].asString();
 }
diff --git a/host/libs/config/cuttlefish_config.h b/host/libs/config/cuttlefish_config.h
index 933cdca..9ce528e 100644
--- a/host/libs/config/cuttlefish_config.h
+++ b/host/libs/config/cuttlefish_config.h
@@ -191,9 +191,6 @@
   std::string mobile_tap_name() const;
   void set_mobile_tap_name(const std::string& mobile_tap_name);
 
-  std::string wifi_bridge_name() const;
-  void set_wifi_bridge_name(const std::string& wifi_bridge_name);
-
   std::string wifi_tap_name() const;
   void set_wifi_tap_name(const std::string& wifi_tap_name);