Revert "fix(spanner): end spans for read-write methods"#3632

gcf-merge-on-green[bot] merged 1 commit intomaingoogleapis/java-spanner:mainfrom

revert-3629-fix-otel-span-end-for-rwgoogleapis/java-spanner:revert-3629-fix-otel-span-end-for-rwCopy head branch name to clipboard