Set the flags Trigger.L1.do[Muon|Calo|Topo] to False in MTCalibPeb configuration since this is a special test config that uses dummy chains with forced seeding (forceEnableAllChains=True), therefore it does not need any L1 data. This makes the test jobs slimmer and closer to doing only what they need in order to test the HLT data access framework.
For this change to work, fix also the HLTSeedingConfig logic which should use the Trigger.L1 flags to decide on scheduling L1 data processing.
Fixes ATR-26477