Fixing constructors to match header files

Constructor in cpp file doesn't match header file

Test: m fastboot, fastboot flashall -w
Change-Id: I2c720bb594efca5af1e5a374277543a522ced5ef
diff --git a/fastboot/task.h b/fastboot/task.h
index 34e3e92..d113f18 100644
--- a/fastboot/task.h
+++ b/fastboot/task.h
@@ -118,7 +118,7 @@
 
 class DeleteTask : public Task {
   public:
-    DeleteTask(const FlashingPlan* _fp, const std::string& _pname);
+    DeleteTask(const FlashingPlan* fp, const std::string& pname);
     void Run() override;
 
   private: