cleanup: Remove obsolete test.sh

Replaced by cmake tests

test.sh

@@ -1,12 +0,0 @@
-#!/bin/bash
-cd .. || exit 5
-
-if [ ! -d "Prusa-Firmware-test" ]; then
-    mkdir Prusa-Firmware-test  || exit 10
-fi
-
-cd Prusa-Firmware-test || exit 20
-
-cmake -G "Eclipse CDT4 - Ninja" ../Prusa-Firmware || exit 30
-cmake --build . || exit 35
-./tests || exit 40