vscode-extension: fix MISSING_JAVA_ERROR never getting used because INVALID_JAVA_ERROR was displayed both when Java was not found and when it was invalid

Author: joshtynjala

vscode-extension/src/main/ts/extension.ts

@@ -605,7 +605,7 @@ function startClient() {
     return;
   }
 
-  if (!javaExecutablePath || hasInvalidJava()) {
+  if (hasInvalidJava()) {
     vscode.window.showErrorMessage(INVALID_JAVA_ERROR);
     return;
   }