Prepare SHbbyy for next production

The purpose of this MR is to prepare the resonant bbyy setup for a large production with all systematics, all GN2 working points and SFs, where for backgrounds we can process appropriately for all of our phase spaces: 2btag, 1btag, swapped decay mode. This includes the following changes:

• Following the lead of !1262 (merged) , removed the unnecessary copies of branches for every GEN systematic by only initializing the generatorweights for all systematic variations if one is running the cutflow. Tested locally and works for SHbbyy.
• Turned off running the cutflow and saving cutflow booleans for systematics variations. This also affects the non-resonant bbyy case. I don't know if they need this. @alwang @gdigrego if you need the option to produce cutflows for each systematic, please let me know and I can update this part.
• For resonant configs, turned off the cutflow by default, turned on all systematics, and set GN2 WP to be loose (90) to let us produce ntuples with all WPs stored in the PCBT info.
• Removed commented lines from SH configs which were bothering me 🙂

cc:

HHframework: @aad @croland

bbyy: @tpelzer @alwang @gdigrego @fcurcio @uvandevo @cdimitri @dbrunner