refactor(web-client): remove unnecessary checks

Author: AlexYusiuk

web-client/iron-remote-desktop/src/services/PublicAPI.ts

@@ -26,9 +26,6 @@ export class PublicAPI {
         use_display_control = false,
     ): Promise<NewSessionInfo> {
         loggingService.info('Initializing connection.');
-        if (this.wasmService === undefined) {
-            return Promise.reject(new Error('backend was never set'));
-        }
         const resultObservable = this.wasmService.connect(
             username,
             password,
@@ -46,73 +43,43 @@ export class PublicAPI {
     }
 
     private ctrlAltDel() {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.sendSpecialCombination(SpecialCombination.CTRL_ALT_DEL);
     }
 
     private metaKey() {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.sendSpecialCombination(SpecialCombination.META);
     }
 
     private setVisibility(state: boolean) {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         loggingService.info(`Change component visibility to: ${state}`);
         this.wasmService.setVisibility(state);
     }
 
     private setScale(scale: ScreenScale) {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.setScale(scale);
     }
 
     private shutdown() {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.shutdown();
     }
 
     private setKeyboardUnicodeMode(use_unicode: boolean) {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.setKeyboardUnicodeMode(use_unicode);
     }
 
     private setCursorStyleOverride(style: string | null) {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.setCursorStyleOverride(style);
     }
 
     private resize(width: number, height: number, scale?: number) {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.resizeDynamic(width, height, scale);
     }
 
     private setEnableClipboard(enable: boolean) {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         this.wasmService.setEnableClipboard(enable);
     }
 
     getExposedFunctions(): UserInteraction {
-        if (this.wasmService === undefined) {
-            throw new Error('backend was never set');
-        }
         return {
             setVisibility: this.setVisibility.bind(this),
             connect: this.connect.bind(this),