IVGCVSW-6694 Disable long running Pooling3D unit test cases.

* Disable the following test cases:
   LargeTensorsAveragePooling3d
   LargeTensorsAveragePooling3dUint8
   LargeTensorsAveragePooling3dInt16

Signed-off-by: Colm Donelan <colm.donelan@arm.com>
Change-Id: I908ce880b4d55598e913fc6b186f2bd2e796c613
diff --git a/src/backends/reference/test/RefLayerTests.cpp b/src/backends/reference/test/RefLayerTests.cpp
index 9f5814b..7755f4f 100644
--- a/src/backends/reference/test/RefLayerTests.cpp
+++ b/src/backends/reference/test/RefLayerTests.cpp
@@ -593,9 +593,12 @@
 ARMNN_AUTO_TEST_CASE_WITH_THF(SimpleAveragePooling3dUint8NCDHW, SimpleAveragePooling3dUint8Test, DataLayout::NCDHW)
 ARMNN_AUTO_TEST_CASE_WITH_THF(SimpleAveragePooling3dInt16NCDHW, SimpleAveragePooling3dInt16Test, DataLayout::NCDHW)
 
-ARMNN_AUTO_TEST_CASE_WITH_THF(LargeTensorsAveragePooling3d, LargeTensorsAveragePooling3dTest)
-ARMNN_AUTO_TEST_CASE_WITH_THF(LargeTensorsAveragePooling3dUint8, LargeTensorsAveragePooling3dUint8Test)
-ARMNN_AUTO_TEST_CASE_WITH_THF(LargeTensorsAveragePooling3dInt16, LargeTensorsAveragePooling3dInt16Test)
+// Due to the size of the input each of these test cases takes about 3 minutes
+// to execute in an x86 environment.  We'll disable but not remove them for the
+// moment.
+//ARMNN_AUTO_TEST_CASE_WITH_THF(LargeTensorsAveragePooling3d, LargeTensorsAveragePooling3dTest)
+//ARMNN_AUTO_TEST_CASE_WITH_THF(LargeTensorsAveragePooling3dUint8, LargeTensorsAveragePooling3dUint8Test)
+//ARMNN_AUTO_TEST_CASE_WITH_THF(LargeTensorsAveragePooling3dInt16, LargeTensorsAveragePooling3dInt16Test)
 
 ARMNN_AUTO_TEST_CASE_WITH_THF(IgnorePaddingSimpleAveragePooling3d, IgnorePaddingSimpleAveragePooling3dTest)
 ARMNN_AUTO_TEST_CASE_WITH_THF(IgnorePaddingSimpleAveragePooling3dUint8, IgnorePaddingSimpleAveragePooling3dUint8Test)