Move histogram to test/core/util
diff --git a/test/cpp/qps/BUILD b/test/cpp/qps/BUILD
index 0d91d52..f1abb19 100644
--- a/test/cpp/qps/BUILD
+++ b/test/cpp/qps/BUILD
@@ -106,7 +106,7 @@
         "histogram.h",
         "stats.h",
     ],
-    deps = ["//:gpr"],
+    deps = ["//test/core/util:grpc_test_util"],
 )
 
 grpc_cc_test(