init.rc: remove 4.9/4.14 support

U requires 4.14+
V requires 4.19+

as such this is no longer useful

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I39d01cc16897c6c9174cf074e27c888bc758f1cc
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 1af46c1..02cfca5 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -666,10 +666,6 @@
     exec -- /system/bin/fsverity_init --load-verified-keys
 
 # Only enable the bootreceiver tracing instance for kernels 5.10 and above.
-on late-fs && property:ro.kernel.version=4.9
-    setprop bootreceiver.enable 0
-on late-fs && property:ro.kernel.version=4.14
-    setprop bootreceiver.enable 0
 on late-fs && property:ro.kernel.version=4.19
     setprop bootreceiver.enable 0
 on late-fs && property:ro.kernel.version=5.4