r_submix HAL: Remove unused variable

We no longer set force_pipe_creation after the removal of
legacy code for in-pipe conversions, so we remove it.

Test: TreeHugger
Bug: 141604269
Change-Id: I82393ba0ad3142aa75d482cc6b0edbaeebbd8116
diff --git a/modules/audio_remote_submix/audio_hw.cpp b/modules/audio_remote_submix/audio_hw.cpp
index a944caa..42d3b98 100644
--- a/modules/audio_remote_submix/audio_hw.cpp
+++ b/modules/audio_remote_submix/audio_hw.cpp
@@ -1227,7 +1227,6 @@
     struct submix_audio_device * const rsxadev = audio_hw_device_get_submix_audio_device(dev);
     ALOGD("adev_open_output_stream(address=%s)", address);
     struct submix_stream_out *out;
-    bool force_pipe_creation = false;
     (void)handle;
     (void)devices;
     (void)flags;
@@ -1283,7 +1282,7 @@
     // If the sink has been shutdown or pipe recreation is forced (see above), delete the pipe so
     // that it's recreated.
     if ((rsxadev->routes[route_idx].rsxSink != NULL
-            && rsxadev->routes[route_idx].rsxSink->isShutdown()) || force_pipe_creation) {
+            && rsxadev->routes[route_idx].rsxSink->isShutdown())) {
         submix_audio_device_release_pipe_l(rsxadev, route_idx);
     }