Revert "Add choice for changing sched policy when setting thread priority"

This reverts commit 57affbf91d016eda1395106c4d5f0350471dca85.

Reason for revert: new API is no longer used

Change-Id: I97128c1d367e161aa50deaefa8b73a0f25e29af4
diff --git a/libutils/Threads.cpp b/libutils/Threads.cpp
index 147db54..540dcf4 100644
--- a/libutils/Threads.cpp
+++ b/libutils/Threads.cpp
@@ -302,7 +302,8 @@
 }
 
 #if defined(__ANDROID__)
-int androidSetThreadPriority(pid_t tid, int pri, bool change_policy) {
+int androidSetThreadPriority(pid_t tid, int pri)
+{
     int rc = 0;
     int lasterr = 0;
     int curr_pri = getpriority(PRIO_PROCESS, tid);
@@ -311,19 +312,17 @@
         return rc;
     }
 
-    if (change_policy) {
-        if (pri >= ANDROID_PRIORITY_BACKGROUND) {
-            rc = SetTaskProfiles(tid, {"SCHED_SP_BACKGROUND"}, true) ? 0 : -1;
-        } else if (curr_pri >= ANDROID_PRIORITY_BACKGROUND) {
-            SchedPolicy policy = SP_FOREGROUND;
-            // Change to the sched policy group of the process.
-            get_sched_policy(getpid(), &policy);
-            rc = SetTaskProfiles(tid, {get_sched_policy_profile_name(policy)}, true) ? 0 : -1;
-        }
+    if (pri >= ANDROID_PRIORITY_BACKGROUND) {
+        rc = SetTaskProfiles(tid, {"SCHED_SP_BACKGROUND"}, true) ? 0 : -1;
+    } else if (curr_pri >= ANDROID_PRIORITY_BACKGROUND) {
+        SchedPolicy policy = SP_FOREGROUND;
+        // Change to the sched policy group of the process.
+        get_sched_policy(getpid(), &policy);
+        rc = SetTaskProfiles(tid, {get_sched_policy_profile_name(policy)}, true) ? 0 : -1;
+    }
 
-        if (rc) {
-            lasterr = errno;
-        }
+    if (rc) {
+        lasterr = errno;
     }
 
     if (setpriority(PRIO_PROCESS, tid, pri) < 0) {