CI: Remove run-tests script

The script should have been removed in 90c6ad5f87 ("test: use make
to run the tests").

run-tests

@@ -1,49 +0,0 @@
-#!/bin/bash
-
-READLINK="readlink"
-if command -v greadlink > /dev/null; then
-  READLINK="greadlink" # Prefer greadlink over readlink
-fi
-
-if ! $READLINK -f "$(which "$0")" > /dev/null 2>&1 ; then
-    ROOT="$(dirname "$(which "$0")")"
-    if [ ! -f "$ROOT/hg-fast-export.py" ] ; then
-	echo "test runner requires a readlink implementation which knows" \
-	     " how to canonicalize paths in order to be called via a symlink."
-	exit 1
-    fi
-else
-    ROOT="$(dirname "$($READLINK -f "$(which "$0")")")"
-fi
-
-
-export SHARNESS_TEST_SRCDIR="${SHARNESS_TEST_SRCDIR:-$ROOT/t/sharness}"
-
-TESTS=$(find $ROOT/t -maxdepth 1 -name \*.t -executable -type f)
-
-failed=0
-type parallel >& /dev/null
-if [ $? -eq 0 ]; then
-    echo "Using parallel to run tests"
-    function F() {
-	echo "Running test $1"
-	$1
-    }
-    export -f F
-    parallel F ::: $TESTS || failed=1
-else
-    for i in $TESTS ; do
-	echo "Running test $i"
-	$i || failed=1
-    done
-fi
-
-if [ "$failed" -eq "0" ]; then
-    echo "All tests passed";
-else
-    echo "There were failed tests";
-fi
-
-exit $failed
-
-