urlmon: Remove a redundant NULL check before free (Smatch).
diff --git a/dlls/urlmon/http.c b/dlls/urlmon/http.c
index 5a606ca..a081ad0 100644
--- a/dlls/urlmon/http.c
+++ b/dlls/urlmon/http.c
@@ -528,10 +528,8 @@
         This->http_negotiate = NULL;
     }
 
-    if(This->full_header) {
-        heap_free(This->full_header);
-        This->full_header = NULL;
-    }
+    heap_free(This->full_header);
+    This->full_header = NULL;
 }
 
 static void HttpProtocol_on_error(Protocol *prot, DWORD error)