dracut.sh: remove the concept of host_modalias

We can never gather enough information about compiled in modules, so
don't pretend to know and do smart decisions.

dracut-init.sh

@@ -1022,18 +1022,8 @@ module_is_host_only() {
             modinfo -F filename "$_mod" &>/dev/null && return 1
         fi
 
-        _aliases=$(modinfo -k $kernel -F alias $_mod 2>/dev/null)
-
-        # if the module has no aliases, install it
-        [[ $_aliases ]] || return 0
-
-        # finally check all modalias
-        for a in $_aliases; do
-            for i in "${!host_modalias[@]}"; do
-                [[ $i == $a ]]  && return 0
-            done
-        done
-
+        # just install the module, better safe than sorry
+        return 0
     fi
 
     return 1

dracut.sh

@@ -1187,26 +1187,6 @@ if [[ $hostonly ]]; then
             fi
         done < /etc/fstab
     fi
-
-    # record all host modaliases
-    declare -A host_modalias
-    find /sys/devices -name modalias -exec cat '{}' \; > "$initdir/.modalias"
-    while read -r modalias || [ -n "$modalias" ]; do
-        [[ $modalias ]] && host_modalias["$modalias"]=1
-    done < "$initdir/.modalias"
-
-    rm -f -- "$initdir/.modalias"
-
-    while read _k _s _v || [ -n "$_k" ]; do
-        [ "$_k" != "name" -a "$_k" != "driver" ] && continue
-        host_modalias["$_v"]=1
-    done </proc/crypto
-
-    # check /proc/modules
-    declare -A host_modules
-    while read m rest || [ -n "$m" ]; do
-        host_modules["$m"]=1
-    done </proc/modules
 fi
 
 unset m
@@ -1293,7 +1273,7 @@ export initdir dracutbasedir \
     debug host_fs_types host_devs swap_devs sshkey add_fstab \
     DRACUT_VERSION udevdir prefix filesystems drivers \
     systemdutildir systemdsystemunitdir systemdsystemconfdir \
-    host_modalias host_modules hostonly_cmdline loginstall \
+    host_modules hostonly_cmdline loginstall \
     tmpfilesdir
 
 mods_to_load=""