remove redis mentions from local pre-setup

Jenkinsfile

@@ -242,11 +242,8 @@ def cmake_build(Map conf=[:]){
             export COMPILERS_HASH_DIR=/tmp/.sccache
             export SCCACHE_BIN=/usr/local/.cargo/bin/sccache
             export SCCACHE_EXTRAFILES=/tmp/.sccache/rocm_compilers_hash_file
-            export SCCACHE_REDIS="redis://${env.CK_SCCACHE}"
-            echo "connect = ${env.CK_SCCACHE}" >> ../script/redis-cli.conf
             export SCCACHE_C_CUSTOM_CACHE_BUSTER="${invocation_tag}"
-            echo \$SCCACHE_C_CUSTOM_CACHE_BUSTER"
-            stunnel ../script/redis-cli.conf
+            echo \$SCCACHE_C_CUSTOM_CACHE_BUSTER
             ../script/sccache_wrapper.sh
         """
         setup_args = " -DCMAKE_CXX_COMPILER_LAUNCHER=sccache -DCMAKE_C_COMPILER_LAUNCHER=sccache " + setup_args