[ refactor ] Remove unused struct

TestNavigationThrottle::Status seems unused. Removing with this CL.

Bug: None
Change-Id: I69ba98e5b9eaa976861ada7dc772ca7f794d4115
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1642019Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Commit-Queue: Ehsan Karamad <ekaramad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#666269}

content/public/test/test_navigation_throttle.h

@@ -35,17 +35,6 @@ class TestNavigationThrottle : public NavigationThrottle {
     ASYNCHRONOUS,
   };
 
-  struct Status {
-    Status(ThrottleMethod method,
-           ResultSynchrony synchrony,
-           NavigationThrottle::ThrottleCheckResult result)
-        : method(method), synchrony(synchrony), result(result) {}
-
-    ThrottleMethod method;
-    ResultSynchrony synchrony;
-    NavigationThrottle::ThrottleCheckResult result;
-  };
-
   TestNavigationThrottle(NavigationHandle* handle);
   ~TestNavigationThrottle() override;