small speedup fixes

usr/lib/initcpio/install/archboot

@@ -31,8 +31,6 @@ add_module() {
     local target='' module='' softdeps=() deps=() field='' value='' firmware=()
     local ign_errors=0 found=0
 
-    [[ "$KERNELVERSION" == 'none' ]] && return 0
-
     if [[ "$1" == *\? ]]; then
         ign_errors=1
         set -- "${1%?}"
@@ -86,6 +84,20 @@ add_module() {
     fi
 }
 
+add_checked_modules() {
+    # Add modules to the initcpio, filtered by the list of autodetected
+    # modules.
+    #   $@: arguments to all_modules
+
+    local mod mods
+
+    mapfile -t mods < <(all_modules "$@")
+
+    map add_module "${mods[@]}"
+
+    return $(( !${#mods[*]} ))
+}
+
 add_full_dir() {
     # Add a directory and all its contents, recursively, to the initcpio image.
     # No parsing is performed and the contents of the directory is added as is.
@@ -229,14 +241,6 @@ add_binary() {
 
 install_modules() {
     local m
-    local -a xz_comp gz_comp zst_comp
-
-    [[ "$KERNELVERSION" == 'none' ]] && return 0
-
-    if (( $# == 0 )); then
-        warning "No modules were added to the image. This is probably not what you want."
-        return 0
-    fi
 
     for m in "$@"; do
         add_file "$m" "$m"