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Yes, you can trash it. The maintenance tool would just remove the symlinks that are placed at /usr/local/bin (see at end)
If you want to use an older E+ version without removing the newest one, just call E+ using the full path or change your PATH variable to make the E+ folder first in line

example:

/Applications/EnergyPlus-23-2-0/energyplus -w /path/to/epw -d out in.idf
# Or
export PATH=/Applications/EnergyPlus-23-2-0:$PATH
energyplus -w /path/to/epw -d out in.idf

$ ls -la /usr/local/bin/ | rg EnergyPlus

lrwxr-xr-x@  1 root  wheel       64 Mar 31 20:51 Basement -> /Applications/EnergyPlus-25-1-0/PreProcess/GrndTempCalc/Basement
lrwxr-xr-x@  1 root  wheel       71 Mar 31 20:51 BasementGHT.idd -> /Applications/EnergyPlus-25-1-0/PreProcess/GrndTempCalc/BasementGHT.idd
lrwxr-xr-x@  1 root  wheel       74 Mar 31 20:51 convertESOMTR -> /Applications/EnergyPlus-25-1-0/PostProcess/convertESOMTRpgm/convertESOMTR
lrwxr-xr-x@  1 root  wheel       43 Mar 31 20:51 Energy+.idd -> /Applications/EnergyPlus-25-1-0/Energy+.idd
lrwxr-xr-x@  1 root  wheel       53 Mar 31 20:51 Energy+.schema.epJSON -> /Applications/EnergyPlus-25-1-0/Energy+.schema.epJSON
lrwxr-xr-x@  1 root  wheel       42 Mar 31 20:51 energyplus -> /Applications/EnergyPlus-25-1-0/energyplus
lrwxr-xr-x@  1 root  wheel       39 Mar 31 20:51 EPMacro -> /Applications/EnergyPlus-25-1-0/EPMacro
lrwxr-xr-x@  1 root  wheel       45 Mar 31 20:51 ExpandObjects -> /Applications/EnergyPlus-25-1-0/ExpandObjects
lrwxr-xr-x@  1 root  wheel       56 Mar 31 20:51 HVAC-Diagram -> /Applications/EnergyPlus-25-1-0/PostProcess/HVAC-Diagram
lrwxr-xr-x@  1 root  wheel       88 Mar 31 20:51 ParametricPreprocessor -> /Applications/EnergyPlus-25-1-0/PreProcess/ParametricPreprocessor/ParametricPreprocessor
lrwxr-xr-x@  1 root  wheel       55 Mar 31 20:51 ReadVarsESO -> /Applications/EnergyPlus-25-1-0/PostProcess/ReadVarsESO
lrwxr-xr-x@  1 root  wheel       45 Mar 31 20:51 runenergyplus -> /Applications/EnergyPlus-25-1-0/runenergyplus
lrwxr-xr-x@  1 root  wheel       42 Mar 31 20:51 runepmacro -> /Applications/EnergyPlus-25-1-0/runepmacro
lrwxr-xr-x@  1 root  wheel       43 Mar 31 20:51 runreadvars -> /Applications/EnergyPlus-25-1-0/runreadvars
lrwxr-xr-x@  1 root  wheel       60 Mar 31 20:51 Slab -> /Applications/EnergyPlus-25-1-0/PreProcess/GrndTempCalc/Slab
lrwxr-xr-x@  1 root  wheel       67 Mar 31 20:51 SlabGHT.idd -> /Applications/EnergyPlus-25-1-0/PreProcess/GrndTempCalc/SlabGHT.idd