vscode: remove type assertion

Author: Veetaha

editors/code/.eslintrc.js

@@ -32,6 +32,7 @@ module.exports = {
         "@typescript-eslint/semi": [
             "error",
             "always"
-        ]
+        ],
+        "@typescript-eslint/no-unnecessary-type-assertion": "error"
     }
 };

editors/code/src/installation/server.ts

@@ -63,7 +63,7 @@ export async function ensureServerBinary(source: null | BinarySource): Promise<n
 
 async function downloadServer(source: BinarySource.GithubRelease): Promise<boolean> {
     try {
-        const releaseInfo = (await fetchArtifactReleaseInfo(source.repo, source.file, source.version))!;
+        const releaseInfo = await fetchArtifactReleaseInfo(source.repo, source.file, source.version);
 
         await downloadArtifact(releaseInfo, source.file, source.dir, "language server");
         await setServerVersion(source.storage, releaseInfo.releaseName);