Reduce unused exports, ref microsoft#164939 (microsoft#165389)

Author: rzhao271

src/vs/base/browser/ui/iconLabel/iconLabelHover.ts

@@ -37,7 +37,7 @@ type IResolvedHoverContent = IMarkdownString | string | HTMLElement | undefined;
  * Copied from src\vs\workbench\services\hover\browser\hover.ts
  * @deprecated Use IHoverService
  */
-export interface IHoverAction {
+interface IHoverAction {
 	label: string;
 	commandId: string;
 	iconClass?: string;

src/vs/workbench/contrib/emmet/browser/emmetActions.ts

@@ -42,7 +42,7 @@ class GrammarContributions implements IGrammarContributions {
 	}
 }
 
-export interface IEmmetActionOptions extends IActionOptions {
+interface IEmmetActionOptions extends IActionOptions {
 	actionName: string;
 }
 

src/vs/workbench/contrib/preferences/browser/settingsTree.ts

@@ -1119,7 +1119,7 @@ export class SettingComplexRenderer extends AbstractSettingRenderer implements I
 	}
 }
 
-export class SettingArrayRenderer extends AbstractSettingRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingListItemTemplate> {
+class SettingArrayRenderer extends AbstractSettingRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingListItemTemplate> {
 	templateId = SETTINGS_ARRAY_TEMPLATE_ID;
 
 	renderTemplate(container: HTMLElement): ISettingListItemTemplate {
@@ -1335,7 +1335,7 @@ abstract class AbstractSettingObjectRenderer extends AbstractSettingRenderer imp
 	}
 }
 
-export class SettingObjectRenderer extends AbstractSettingObjectRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingObjectItemTemplate> {
+class SettingObjectRenderer extends AbstractSettingObjectRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingObjectItemTemplate> {
 	override templateId = SETTINGS_OBJECT_TEMPLATE_ID;
 
 	renderTemplate(container: HTMLElement): ISettingObjectItemTemplate {
@@ -1380,7 +1380,7 @@ export class SettingObjectRenderer extends AbstractSettingObjectRenderer impleme
 	}
 }
 
-export class SettingBoolObjectRenderer extends AbstractSettingObjectRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingObjectItemTemplate> {
+class SettingBoolObjectRenderer extends AbstractSettingObjectRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingObjectItemTemplate> {
 	override templateId = SETTINGS_BOOL_OBJECT_TEMPLATE_ID;
 
 	renderTemplate(container: HTMLElement): ISettingObjectItemTemplate {
@@ -1550,7 +1550,7 @@ abstract class AbstractSettingTextRenderer extends AbstractSettingRenderer imple
 	}
 }
 
-export class SettingTextRenderer extends AbstractSettingTextRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingTextItemTemplate> {
+class SettingTextRenderer extends AbstractSettingTextRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingTextItemTemplate> {
 	templateId = SETTINGS_TEXT_TEMPLATE_ID;
 
 	override renderTemplate(_container: HTMLElement): ISettingTextItemTemplate {
@@ -1568,7 +1568,7 @@ export class SettingTextRenderer extends AbstractSettingTextRenderer implements
 	}
 }
 
-export class SettingMultilineTextRenderer extends AbstractSettingTextRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingTextItemTemplate> {
+class SettingMultilineTextRenderer extends AbstractSettingTextRenderer implements ITreeRenderer<SettingsTreeSettingElement, never, ISettingTextItemTemplate> {
 	templateId = SETTINGS_MULTILINE_TEXT_TEMPLATE_ID;
 
 	override renderTemplate(_container: HTMLElement): ISettingTextItemTemplate {

src/vs/workbench/services/layout/browser/layoutService.ts

@@ -56,7 +56,7 @@ export function positionFromString(str: string): Position {
 	return positionsByString[str];
 }
 
-export function panelOpensMaximizedSettingToString(setting: PanelOpensMaximizedOptions): string {
+function panelOpensMaximizedSettingToString(setting: PanelOpensMaximizedOptions): string {
 	switch (setting) {
 		case PanelOpensMaximizedOptions.ALWAYS: return 'always';
 		case PanelOpensMaximizedOptions.NEVER: return 'never';