Remove absl dep and custom MujocoTest from usd plugin tests.

PiperOrigin-RevId: 753144576
Change-Id: I3d4fd470c698967a50b189b99c1bb808a9a80306

test/experimental/usd/plugins/mjcf/fixture.cc

@@ -18,7 +18,6 @@
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
-#include <absl/log/check.h>
 #include <pxr/usd/sdf/assetPath.h>
 #include <pxr/usd/sdf/declareHandles.h>
 #include <pxr/usd/sdf/fileFormat.h>
@@ -62,5 +61,4 @@ void ExpectAttributeHasConnection(pxr::UsdStageRefPtr stage, const char* path,
   EXPECT_EQ(sources.size(), 1);
   EXPECT_EQ(sources[0], SdfPath(connection_path));
 }
-//
 }  // namespace mujoco

test/experimental/usd/plugins/mjcf/fixture.h

@@ -18,7 +18,6 @@
 #include <string>
 
 #include <gtest/gtest.h>
-#include "test/fixture.h"
 #include <pxr/usd/sdf/assetPath.h>
 #include <pxr/usd/sdf/declareHandles.h>
 #include <pxr/usd/sdf/fileFormat.h>
@@ -95,8 +94,5 @@ void ExpectAttributeEqual<pxr::SdfAssetPath>(pxr::UsdStageRefPtr stage,
 
 void ExpectAttributeHasConnection(pxr::UsdStageRefPtr stage, const char* path,
                                   const char* connection_path);
-
-using MjcfSdfFileFormatPluginTest = MujocoTest;
-
 }  // namespace mujoco
 #endif  // MUJOCO_TEST_EXPERIMENTAL_USD_PLUGINS_MJCF_FIXTURE_H_

test/experimental/usd/plugins/mjcf/mjcf_file_format_test.cc

@@ -17,7 +17,6 @@
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
-#include <absl/strings/string_view.h>
 #include "test/experimental/usd/plugins/mjcf/fixture.h"
 #include "test/fixture.h"
 #include <pxr/base/gf/vec2f.h>
@@ -60,6 +59,7 @@ namespace mujoco {
 namespace {
 
 using pxr::SdfPath;
+using MjcfSdfFileFormatPluginTest = MujocoTest;
 
 static const char* kMaterialsPath =
     "experimental/usd/plugins/mjcf/testdata/materials.xml";