Revert "Revert "SF: Remove refresh_rate_switching flag.""

This reverts commit 2a215191be4854fcb4b2836929a955157eae52d1.

Reason for revert: Droidcop-triggered revert due to breakage https://android-build.googleplex.com/builds/quarterdeck?branch=git_master&target=hawk-userdebug&lkgb=6180052&lkbb=6180424&fkbb=6180072, bug b/148835312.

Bug: 148835312
Change-Id: Ie8e5d4c683ab7f10051e355a62941bdb37a196b7
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp
index 8e07c79..18d6bd2 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp
@@ -47,8 +47,8 @@
     ~RefreshRateStatsTest();
 
     void init(const std::vector<RefreshRateConfigs::InputConfig>& configs) {
-        mRefreshRateConfigs = std::make_unique<RefreshRateConfigs>(
-                /*refreshRateSwitching=*/true, configs, /*currentConfig=*/CONFIG_ID_0);
+        mRefreshRateConfigs =
+                std::make_unique<RefreshRateConfigs>(configs, /*currentConfig=*/CONFIG_ID_0);
         mRefreshRateStats =
                 std::make_unique<RefreshRateStats>(*mRefreshRateConfigs, mTimeStats,
                                                    /*currentConfigId=*/CONFIG_ID_0,