removed kaniko caching

ci/scripts/ledger/build-image.sh

@@ -73,9 +73,6 @@ if [ ! -d "${BUILD_CONTEXT}" ]; then
   BUILD_CONTEXT="/workspace"
 fi
 
-KANIKO_CACHE_REPO="${KANIKO_CACHE_REPO:-${REGISTRY_URL}/kaniko-cache}"
-KANIKO_CACHE_TTL="${KANIKO_CACHE_TTL:-336h}"
-
 /kaniko/executor \
   --context "${BUILD_CONTEXT}" \
   --dockerfile "${LEDGER_DOCKERFILE}" \
@@ -85,8 +82,4 @@ KANIKO_CACHE_TTL="${KANIKO_CACHE_TTL:-336h}"
   --build-arg BUILD_BRANCH="${BUILD_BRANCH}" \
   --build-arg BUILD_DATE="${BUILD_DATE}" \
   --build-arg BUILD_USER="${BUILD_USER}" \
-  --cache=true \
-  --cache-copy-layers \
-  --cache-run-layers \
-  --cache-repo "${KANIKO_CACHE_REPO}" \
-  --cache-ttl "${KANIKO_CACHE_TTL}"
+  --single-snapshot