txthrottler: remove txThrottlerConfig struct, rely on tabletenv#13624

shlomi-noach merged 11 commits intovitessio:mainvitessio/vitess:mainfrom

timvaillancourt:tx-throttler-rm-txThrottlerConfig-structtimvaillancourt/vitess:tx-throttler-rm-txThrottlerConfig-structCopy head branch name to clipboard