Remove all.sh file, superseded by 'make ci'

all.sh

@@ -1,19 +0,0 @@
-#!/bin/sh
-
-KERL_INSTALL_PATH=~/erlang
-KERL_RELEASES="r15b01 r15b02 r15b03 r16b r16b01 r16b02 r16b03-1 17.0 17.1.2"
-
-make build-ct-suites
-
-for rel in $KERL_RELEASES
-do
-	echo
-	echo "    TESTING $rel"
-	echo
-	. $KERL_INSTALL_PATH/$rel/activate
-	cp ~/.kerl/builds/$rel/otp_src_*/lib/ssl/test/erl_make_certs.erl \
-		deps/ct_helper/src/
-	CT_OPTS="-label $rel" make tests
-done
-
-xdg-open logs/all_runs.html