hal: remove multiple offload flag in hw ext plugin

Remove multiple offload usecase support feature
flag in hw extn plugin.

Change-Id: I4b1b71125d2a468c74b32d694588fb1d66f54624
diff --git a/hal/audio_extn/ext_hw_plugin.c b/hal/audio_extn/ext_hw_plugin.c
index 3c9458a..1336ae8 100644
--- a/hal/audio_extn/ext_hw_plugin.c
+++ b/hal/audio_extn/ext_hw_plugin.c
@@ -211,7 +211,6 @@
     case USECASE_AUDIO_PLAYBACK_LOW_LATENCY:
     case USECASE_AUDIO_PLAYBACK_MULTI_CH:
     case USECASE_AUDIO_PLAYBACK_OFFLOAD:
-#ifdef MULTIPLE_OFFLOAD_ENABLED
     case USECASE_AUDIO_PLAYBACK_OFFLOAD2:
     case USECASE_AUDIO_PLAYBACK_OFFLOAD3:
     case USECASE_AUDIO_PLAYBACK_OFFLOAD4:
@@ -220,7 +219,6 @@
     case USECASE_AUDIO_PLAYBACK_OFFLOAD7:
     case USECASE_AUDIO_PLAYBACK_OFFLOAD8:
     case USECASE_AUDIO_PLAYBACK_OFFLOAD9:
-#endif
     case USECASE_AUDIO_PLAYBACK_ULL:
         *plugin_usecase = AUDIO_HAL_PLUGIN_USECASE_DEFAULT_PLAYBACK;
         break;