SLB Nov Hackathon: Turn off all tau->e lines

This MR sets the prescale to 0 for all sprucing lines with a tau -> e decay, including fake electron lines. Setting the prescale to 0 allows to turn off the line while keeping the code in the repository in case we want to turn these lines on for future resprucing campaigns. BW numbers below taken from https://lhcbpr-hlt.web.cern.ch/UpgradeRateTest/BandwidthTest_lhcb-2024-patches-mr.1805_Moore_hlt2_and_spruce_bandwidth_x86_64_v3-el9-gcc13-opt+g_2024-11-04_12:30:08\_+0100/hlt2__production__all_rates.html

Line name	Full Stream BandWidth (GB/s) (fake electron line)
SpruceSLB_B0ToDpTauNu_DpToKPiPi_TauToENuNu	0.0419 (0.0159)
SpruceSLB_BuToD0TauNu_D0ToK3Pi_TauToENuNu	0.0145 (0.00124)
SpruceSLB_BcToJpsiTauNu_JpsiToMuMu_TauToENuNu	0.00422 (0.001)
SpruceSLB_BsToDsTauNu_DsToKKPi_TauToENuNu	0.0318 (0.0192)
SpruceSLB_LbToLcTauNu_LcToPKPi_TauToENuNu	0 (0)
SpruceSLB_LbToLcTauNu_LcToPKSLL_TautoENuNu	0 (0)
SpruceSLB_LbToLcTauNu_LcToPKSDD_TautoENuNu	0 (0)
SpruceSLB_LbToLcTauNu_LcToLambdaPiLL_TautoENuNu	0 (0)
SpruceSLB_LbToLcTauNu_LcToLambdaPiDD_TautoENuNu	0 (0)
Sum	0.092 (0.037)