cleanup: Bluetooth/A2DP code cleanup

kernel/src/Drivers/USB/Bluetooth/L2cap.cpp

@@ -31,19 +31,10 @@ namespace Drivers::USB::Bluetooth::L2cap {
     // 3=security-block, 4=no-resources).  0xFFFF = none received yet.
     static volatile uint16_t g_lastConnRspResult = 0xFFFF;
 
-    // Diagnostic: how many incoming AVDTP connection requests the remote has
-    // made (tells us whether the headset wants to initiate the audio channel).
-    static volatile uint16_t g_incomingAvdtpReqs = 0;
-
     // Channel table
     static ChannelInfo g_channels[MAX_CHANNELS] = {};
     static uint16_t g_nextCid = CID_DYNAMIC_START;
 
-    // Signaling response tracking
-    static volatile bool g_sigResponseReady = false;
-    static uint8_t g_sigResponseBuf[64] = {};
-    static uint32_t g_sigResponseLen = 0;
-
     // =========================================================================
     // Helpers
     // =========================================================================
@@ -154,7 +145,6 @@ namespace Drivers::USB::Bluetooth::L2cap {
 
                         // Accept connections for AVDTP, SDP, and AVRCP control
                         if (psm == PSM_AVDTP || psm == PSM_SDP || psm == PSM_AVCTP) {
-                            if (psm == PSM_AVDTP) g_incomingAvdtpReqs++;
                             auto* ch = AllocChannel(psm);
                             if (ch) {
                                 ch->RemoteCid = srcCid;
@@ -565,8 +555,4 @@ namespace Drivers::USB::Bluetooth::L2cap {
         return g_lastConnRspResult;
     }
 
-    uint16_t IncomingAvdtpReqCount() {
-        return g_incomingAvdtpReqs;
-    }
-
 }