Revert "Wifi: Support check on device capability for 6GHZ"

This reverts commit 046257fd2e916ced9a16596d66e003402b90dce2.

Reason for revert: b/144576287 broke git_master 

Change-Id: I357df4a242a3ae22c793f8f4120199f04cbcdfa2
diff --git a/wifi/1.4/default/hidl_struct_util.cpp b/wifi/1.4/default/hidl_struct_util.cpp
index 13a09f3..61f311e 100644
--- a/wifi/1.4/default/hidl_struct_util.cpp
+++ b/wifi/1.4/default/hidl_struct_util.cpp
@@ -91,7 +91,7 @@
 }
 
 IWifiStaIface::StaIfaceCapabilityMask
-convertLegacyFeatureToHidlStaIfaceCapability(uint64_t feature) {
+convertLegacyFeatureToHidlStaIfaceCapability(uint32_t feature) {
     using HidlStaIfaceCaps = IWifiStaIface::StaIfaceCapabilityMask;
     switch (feature) {
         case WIFI_FEATURE_GSCAN:
@@ -120,8 +120,6 @@
             return HidlStaIfaceCaps::ND_OFFLOAD;
         case WIFI_FEATURE_MKEEP_ALIVE:
             return HidlStaIfaceCaps::KEEP_ALIVE;
-        case WIFI_FEATURE_INFRA_6G:
-            return HidlStaIfaceCaps::STA_6G;
     };
     CHECK(false) << "Unknown legacy feature: " << feature;
     return {};
@@ -367,7 +365,7 @@
 }
 
 bool convertLegacyFeaturesToHidlStaCapabilities(
-    uint64_t legacy_feature_set, uint32_t legacy_logger_feature_set,
+    uint32_t legacy_feature_set, uint32_t legacy_logger_feature_set,
     uint32_t* hidl_caps) {
     if (!hidl_caps) {
         return false;
@@ -386,8 +384,7 @@
           WIFI_FEATURE_IE_WHITELIST, WIFI_FEATURE_SCAN_RAND,
           WIFI_FEATURE_INFRA_5G, WIFI_FEATURE_HOTSPOT, WIFI_FEATURE_PNO,
           WIFI_FEATURE_TDLS, WIFI_FEATURE_TDLS_OFFCHANNEL,
-          WIFI_FEATURE_CONFIG_NDO, WIFI_FEATURE_MKEEP_ALIVE,
-          WIFI_FEATURE_INFRA_6G}) {
+          WIFI_FEATURE_CONFIG_NDO, WIFI_FEATURE_MKEEP_ALIVE}) {
         if (feature & legacy_feature_set) {
             *hidl_caps |= convertLegacyFeatureToHidlStaIfaceCapability(feature);
         }