Remove usage of intellisenseEngineFallback setting. (#12600)

Author: browntarik

Extension/package.json

@@ -915,16 +915,6 @@
                         ],
                         "scope": "resource"
                     },
-                    "C_Cpp.intelliSenseEngineFallback": {
-                        "type": "string",
-                        "enum": [
-                            "enabled",
-                            "disabled"
-                        ],
-                        "default": "disabled",
-                        "markdownDescription": "%c_cpp.configuration.intelliSenseEngineFallback.markdownDescription%",
-                        "scope": "resource"
-                    },
                     "C_Cpp.exclusionPolicy": {
                         "type": "string",
                         "enum": [

Extension/src/LanguageServer/client.ts

@@ -1326,7 +1326,6 @@ export class DefaultClient implements Client {
         const result: WorkspaceFolderSettingsParams = {
             uri: workspaceFolderUri?.toString(),
             intelliSenseEngine: settings.intelliSenseEngine,
-            intelliSenseEngineFallback: settings.intelliSenseEngineFallback,
             autocomplete: settings.autocomplete,
             autocompleteAddParentheses: settings.autocompleteAddParentheses,
             errorSquiggles: settings.errorSquiggles,

Extension/src/LanguageServer/settings.ts

@@ -37,7 +37,6 @@ export interface Associations {
 export interface WorkspaceFolderSettingsParams {
     uri: string | undefined;
     intelliSenseEngine: string;
-    intelliSenseEngineFallback: boolean;
     autocomplete: string;
     autocompleteAddParentheses: boolean;
     errorSquiggles: string;
@@ -367,7 +366,6 @@ export class CppSettings extends Settings {
     public get experimentalFeatures(): boolean { return this.getAsString("experimentalFeatures").toLowerCase() === "enabled"; }
     public get suggestSnippets(): boolean { return this.getAsBoolean("suggestSnippets"); }
     public get intelliSenseEngine(): string { return this.getAsString("intelliSenseEngine"); }
-    public get intelliSenseEngineFallback(): boolean { return this.getAsString("intelliSenseEngineFallback").toLowerCase() === "enabled"; }
     public get intelliSenseCachePath(): string | undefined { return changeBlankStringToUndefined(this.getAsStringOrUndefined("intelliSenseCachePath")); }
     public get intelliSenseCacheSize(): number { return this.getAsNumber("intelliSenseCacheSize"); }
     public get intelliSenseMemoryLimit(): number { return this.getAsNumber("intelliSenseMemoryLimit"); }