simplify descriptive names even more

Author: dqpinel

src/descriptive_names.yml

@@ -84,7 +84,7 @@ structures:
   HydroPump:
     cap:                    "Installed pumping capacity"
 
-  CycleLife:
+  AbstractBatteryLife:
     stack_cost:             "Relative cost for replacing a battery stack"
 
   # EnergyModelsHeat
@@ -118,10 +118,6 @@ structures:
     up:                     "Maximum positive rate of change of a node"
     down:                   "Maximum negative rate of change of a node"
 
-  Reformer:
-    opex_var:               "Variable operating expense per capacity usage"
-    opex_fixed:             "Fixed operating expense per installed capacity"
-
   # EnergyModelsCO2
   CO2Source:
     opex_var:               "Variable operating expense per energy unit produced"