XHCI: Disable Stop/SetTRD/Reset again.

They don't seem to particularly help, and there are reports
that this broke XHCI completely on some devices.

This reverts commit a21f7b525b.

src/add-ons/kernel/busses/usb/xhci.cpp

@@ -1496,6 +1496,16 @@ XHCI::_InsertEndpointForPipe(Pipe *pipe)
 			return status;
 		}
 
+#if 0
+		/* These commands error with "Context state" on some devices,
+		 * and on others break transfers altogether. So just disable them
+		 * for now. */
+		StopEndpoint(false, endpoint, device->slot);
+		SetTRDequeue(device->endpoints[id].trb_addr, 0, endpoint,
+			device->slot);
+		ResetEndpoint(false, endpoint, device->slot);
+#endif
+
 		_WriteContext(&device->input_ctx->input.dropFlags, 0);
 		_WriteContext(&device->input_ctx->input.addFlags,
 			(1 << endpoint) | (1 << 0));
@@ -1505,11 +1515,6 @@ XHCI::_InsertEndpointForPipe(Pipe *pipe)
 		else
 			EvaluateContext(device->input_ctx_addr, device->slot);
 
-		StopEndpoint(false, endpoint, device->slot);
-		SetTRDequeue(device->endpoints[id].trb_addr, 0, endpoint,
-			device->slot);
-		ResetEndpoint(false, endpoint, device->slot);
-
 		TRACE("device: address 0x%x state 0x%08" B_PRIx32 "\n",
 			device->address, SLOT_3_SLOT_STATE_GET(_ReadContext(
 				&device->device_ctx->slot.dwslot3)));