Remove a couple of LMK properties from GSI image

These two properties shouldn't be set in GSI image from R on,
otherwise they'll force lmkd to use the legacy strategy.

Bug: 136212765
Test: run cts-on-gsi -m CtsFileSystemTestCases
Test: run cts-on-gsi -m CtsAppExitTestCases
Change-Id: Id0001f8c4187a280cffe6c72d7a39be29065ca4e
Merged-In: Id0001f8c4187a280cffe6c72d7a39be29065ca4e
(cherry picked from commit 5f97d6d24f9d63a962e9d73a1c9b191ebee9ba46)
diff --git a/target/board/gsi_system_ext.prop b/target/board/gsi_system_ext.prop
index dd3227e..f085b61 100644
--- a/target/board/gsi_system_ext.prop
+++ b/target/board/gsi_system_ext.prop
@@ -14,6 +14,4 @@
 ro.control_privapp_permissions=disable
 
 # TODO(b/136212765): the default for LMK
-ro.lmk.kill_heaviest_task=true
 ro.lmk.kill_timeout_ms=100
-ro.lmk.use_minfree_levels=true
diff --git a/target/board/gsi_system_ext_user.prop b/target/board/gsi_system_ext_user.prop
index db6d880..de8c487 100644
--- a/target/board/gsi_system_ext_user.prop
+++ b/target/board/gsi_system_ext_user.prop
@@ -11,6 +11,4 @@
 ro.control_privapp_permissions=disable
 
 # TODO(b/136212765): the default for LMK
-ro.lmk.kill_heaviest_task=true
 ro.lmk.kill_timeout_ms=100
-ro.lmk.use_minfree_levels=true