kernel-install: remove unneeded modules.* files created by depmod (#5766)

Fixes #5765.

src/kernel-install/50-depmod.install

@@ -2,7 +2,15 @@
 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
 # ex: ts=8 sw=4 sts=4 et filetype=sh
 
-[[ $1 == "add" ]] || exit 0
 [[ $2 ]] || exit 1
 
-exec depmod -a "$2"
+case "$1" in
+    add)
+        exec depmod -a "$2"
+        ;;
+    remove)
+        exec rm -f /lib/modules/"$2"/modules.{alias{,.bin},builtin.bin,dep{,.bin},devname,softdep,symbols{,.bin}}
+        ;;
+    *)
+        exit 0
+esac