Revert .clang-format header priorities change (#803)

Author: aobolensk

.clang-format

@@ -6,13 +6,6 @@ UseTab: Never
 AllowShortFunctionsOnASingleLine: Empty
 IndentPPDirectives: AfterHash
 SortIncludes: true
-IncludeCategories:
-  - Regex: '^<gtest/.*'
-    Priority: 1
-  - Regex: '^<.*'
-    Priority: 2
-  - Regex: '.*'
-    Priority: 3
 FixNamespaceComments: true
 InsertBraces: true
 QualifierAlignment: Left

modules/util/include/perf_test_util.hpp

@@ -1,20 +1,20 @@
 #pragma once
 
+#include <benchmark/benchmark.h>
 #include <gtest/gtest.h>
+#include <mpi.h>
+#include <omp.h>
+#include <tbb/tick_count.h>
 
-#include <benchmark/benchmark.h>
 #include <chrono>
 #include <cstddef>
 #include <cstdint>
 #include <exception>
 #include <functional>
 #include <iostream>
-#include <mpi.h>
-#include <omp.h>
 #include <stdexcept>
 #include <string>
 #include <string_view>
-#include <tbb/tick_count.h>
 #include <tuple>
 #include <type_traits>
 #include <utility>

tasks/common/runners/performance.cpp

@@ -1,7 +1,8 @@
-#include <gtest/gtest.h>
-
 #include <benchmark/benchmark.h>
 #include <benchmark/reporter.h>
+#include <gtest/gtest.h>
+#include <mpi.h>
+
 #include <chrono>
 #include <cstddef>
 #include <cstdint>
@@ -12,7 +13,6 @@
 #include <fstream>
 #include <iostream>
 #include <memory>
-#include <mpi.h>
 #include <random>
 #include <stdexcept>
 #include <string>