removed deprecated test script (#4490)

.docker/test-kimai-version.sh

@@ -1,17 +0,0 @@
-#!/bin/sh
-
-# An reg wizard can probably do this without the cut command
-VER=$(echo $KIMAI | sed 's/[^0-9]//g' | cut -c1-3)
-
-if test "${VER}" -lt 111
-then
-  echo "+--------------------------------------------------------------------------+"
-  echo "| Kimai versions older than 1.11 require composer 1.x                      |"
-  echo "| To build older versions you'll need to use a tagged version of this repo |"
-  echo "| https://github.com/tobybatch/kimai2/releases/tag/EOL-composer-1.x        |"
-  echo "|                                                                          |"
-  echo "| See https://github.com/tobybatch/kimai2/issues/180                       |"
-  echo "+--------------------------------------------------------------------------+"
-  return 1
-fi
-