Remove unnecessary else statements and default props

ui/src/dashboards/components/dashboard_index/DashboardsIndex.tsx

@@ -146,9 +146,8 @@ class DashboardIndex extends PureComponent<Props, State> {
     const {limitStatus} = this.props
     if (limitStatus === LimitStatus.EXCEEDED) {
       return ComponentStatus.Disabled
-    } else {
-      return ComponentStatus.Default
     }
+    return ComponentStatus.Default
   }
 
   private get addResourceTitleText(): string {

ui/src/shared/components/AddResourceDropdown.tsx

@@ -13,9 +13,6 @@ interface OwnProps {
   onSelectImport: () => void
   onSelectTemplate?: () => void
   resourceName: string
-  canImportFromTemplate?: boolean
-  status?: ComponentStatus
-  titleText?: string
 }
 
 interface DefaultProps {

ui/src/tasks/components/TasksHeader.tsx

@@ -110,9 +110,8 @@ export default class TasksHeader extends PureComponent<Props> {
     const {limitStatus} = this.props
     if (limitStatus === LimitStatus.EXCEEDED) {
       return ComponentStatus.Disabled
-    } else {
-      return ComponentStatus.Default
     }
+    return ComponentStatus.Default
   }
 
   private get addResourceTitleText(): string {