Bug fix in Workspace.java: parsing of contents out of the json file. (#5768)

Author: jwren

src/io/flutter/bazel/Workspace.java

@@ -265,9 +265,9 @@ static Workspace loadUncached(@NotNull Project project) {
 
     final String sdkHome = config == null ? null : getScriptFromPath(root, readonlyPath, config.getSdkHome());
 
-    final String requiredIJPluginID = config == null ? null : getScriptFromPath(root, readonlyPath, config.getRequiredIJPluginID());
+    final String requiredIJPluginID = config == null ? null : config.getRequiredIJPluginID();
 
-    final String requiredIJPluginMessage = config == null ? null : getScriptFromPath(root, readonlyPath, config.getRequiredIJPluginMessage());
+    final String requiredIJPluginMessage = config == null ? null : config.getRequiredIJPluginMessage();
 
     final String configWarningPrefix = config == null ? null : config.getConfigWarningPrefix();