qsap: Remove support for wifi_fst from QSAP APIs

wifi_fst.h is no longer part of /hardware/libhardware_legacy/ ,
therefore, compilation of libqsap_sdk would fail. Remove dependencies
for wifi_fst from QSAP.

Additionally, skip calling 'chown' after changing configuration
parameters as QSAP is not changing ownership.

CRs-Fixed: 2069881
Change-Id: Iaadfa182270f22555e486dac24a5acafc247b943

softap/sdk/qsap.c

@@ -54,7 +54,6 @@
 
 #include "qsap_api.h"
 #include "qsap.h"
-#include "wifi_fst.h"
 
 #include <sys/system_properties.h>
 
@@ -696,20 +695,3 @@ s32 wifi_qsap_stop_wigig_softap(void)
     usleep(AP_BSS_STOP_DELAY);
     return eSUCCESS;
 }
-
-int qsap_prepare_softap()
-{
-    ALOGD("Starting fstman\n");
-    return wifi_start_fstman(TRUE);
-}
-
-int qsap_unprepare_softap()
-{
-    ALOGD("Stopping fstman\n");
-    return wifi_stop_fstman(TRUE);
-}
-
-int qsap_is_fst_enabled()
-{
-    return is_fst_enabled();
-}