wifi: fix a use of an uninitialized value

This `if` is executed once, so using `legacy_status` from a prior
execution is nonsensical.

Caught by the static analyzer:
> hardware/interfaces/wifi/1.5/default/wifi_chip.cpp:1053:39: warning:
1st function call argument is an uninitialized value
[clang-analyzer-core.CallAndMessage]

Bug: 173999527
Test: atest -c VtsHalWifiApV1_5TargetTest
Merged-In: Ib81f1496be53e453d9c99ede129a77bdaf860de7
Change-Id: Ib81f1496be53e453d9c99ede129a77bdaf860de7
diff --git a/wifi/1.5/default/wifi_chip.cpp b/wifi/1.5/default/wifi_chip.cpp
index fbb4a52..414d74c 100644
--- a/wifi/1.5/default/wifi_chip.cpp
+++ b/wifi/1.5/default/wifi_chip.cpp
@@ -1036,7 +1036,6 @@
 
 WifiStatus WifiChip::removeIfaceInstanceFromBridgedApIfaceInternal(
     const std::string& ifname, const std::string& ifInstanceName) {
-    legacy_hal::wifi_error legacy_status;
     const auto iface = findUsingName(ap_ifaces_, ifname);
     if (!iface.get() || ifInstanceName.empty()) {
         return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
@@ -1048,13 +1047,13 @@
                 if (iface == ifInstanceName) {
                     if (!iface_util_.lock()->removeIfaceFromBridge(it.first,
                                                                    iface)) {
-                        LOG(ERROR) << "Failed to remove interface: " << iface
-                                   << " from " << ifname << ", error: "
-                                   << legacyErrorToString(legacy_status);
+                        LOG(ERROR)
+                            << "Failed to remove interface: " << ifInstanceName
+                            << " from " << ifname;
                         return createWifiStatus(
                             WifiStatusCode::ERROR_NOT_AVAILABLE);
                     }
-                    legacy_status =
+                    legacy_hal::wifi_error legacy_status =
                         legacy_hal_.lock()->deleteVirtualInterface(iface);
                     if (legacy_status != legacy_hal::WIFI_SUCCESS) {
                         LOG(ERROR) << "Failed to del interface: " << iface