refactor: remove redundant assignments in ToolBase constructor

Author: tsck

src/tools/tool.ts

@@ -416,8 +416,6 @@ export abstract class ToolBase {
         elicitation,
         uiRegistry,
     }: ToolConstructorParams) {
-        this.category = category;
-        this.operationType = operationType;
         this.category = category;
         this.operationType = operationType;
         this.session = session;