Revert "Bug 16749: Adjustments for koha-plack"

This reverts commit a470b37277.

debian/scripts/koha-plack

@@ -233,6 +233,22 @@ set_action()
     fi
 }
 
+adjust_paths()
+{
+    # Optionally use alternative paths for a dev install
+    adjust_paths_dev_install $1
+
+    # PERL5LIB has been read from etc/default, add lib/installer
+    # export some vars (for plack.psgi)
+    export KOHA_HOME
+    if [ "$DEV_INSTALL" = "" ]; then
+        export PERL5LIB=$PERL5LIB:$KOHA_HOME/lib/installer
+    else
+        export DEV_INSTALL
+        export PERL5LIB=$PERL5LIB:$KOHA_HOME/installer
+    fi
+}
+
 STARMAN=$(which starman)
 op=""
 quiet="no"
@@ -278,9 +294,7 @@ if [ $# -gt 0 ]; then
 
         if is_instance $name; then
 
-            adjust_paths_dev_install $name
-            export DEV_INSTALL KOHA_HOME PERL5LIB=$PERL5LIB:$KOHA_HOME/installer:$KOHA_HOME/lib/installer
-
+            adjust_paths $name
             case $op in
                 "start")
                     start_plack $name