Revert "Increase SF buffer size before starting flicker tests"

This reverts commit 3bedae5d01e17e5a05553d4b6acd40e90b917c12.

Reason for revert: Significantly increased flakiness in go/wm-tests-flicker

Change-Id: I8e1e051103029abf1b431d514b24a7b6253599b9
diff --git a/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml b/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml
index d8ea0a5..2d6e8f5 100644
--- a/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml
+++ b/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml
@@ -13,8 +13,6 @@
         <option name="run-command" value="cmd window tracing level all" />
         <!-- set WM tracing to frame (avoid incomplete states) -->
         <option name="run-command" value="cmd window tracing frame" />
-        <!-- set Layer tracing buffer size to 50mb -->
-        <option name="run-command" value="su root service call SurfaceFlinger 1029 i32 51200" />
         <!-- ensure lock screen mode is swipe -->
         <option name="run-command" value="locksettings set-disabled false" />
         <!-- restart launcher to activate TAPL -->
diff --git a/tests/FlickerTests/AndroidTest.xml b/tests/FlickerTests/AndroidTest.xml
index 03eb462..d91aa1e 100644
--- a/tests/FlickerTests/AndroidTest.xml
+++ b/tests/FlickerTests/AndroidTest.xml
@@ -13,8 +13,6 @@
         <option name="run-command" value="cmd window tracing level all" />
         <!-- set WM tracing to frame (avoid incomplete states) -->
         <option name="run-command" value="cmd window tracing frame" />
-        <!-- set Layer tracing buffer size to 50mb -->
-        <option name="run-command" value="su root service call SurfaceFlinger 1029 i32 51200" />
         <!-- ensure lock screen mode is swipe -->
         <option name="run-command" value="locksettings set-disabled false" />
         <!-- restart launcher to activate TAPL -->