Ensure start time resets for TT add form #250; remove unused variable

FreeAPS/Sources/Modules/Adjustments/AdjustmentsStateModel+Extensions/AdjustmentsStateModel+TempTargets.swift

@@ -355,6 +355,7 @@ extension Adjustments.StateModel {
         tempTargetDuration = 0
         percentage = 100
         halfBasalTarget = settingHalfBasalTarget
+        date = Date()
     }
 
     // MARK: - Calculations

FreeAPS/Sources/Modules/Adjustments/View/TempTargets/AddTempTargetForm.swift

@@ -107,8 +107,6 @@ struct AddTempTargetForm: View {
             .listRowBackground(Color.chart)
 
             if state.tempTargetTarget != state.normalTarget {
-                let computedHalfBasalTarget = Decimal(state.computeHalfBasalTarget())
-
                 if state.isAdjustSensEnabled() {
                     Section(
                         footer: state.percentageDescription(state.percentage),