tests: Remove regression

This reverts a change that trades one unexpected error for another.
Consequently, the validation this test originally intended to exercise
is ignored.

Change-Id: I61c1f8ee719f8a72a1527bfad7b2e1e28a65b2cb
diff --git a/tests/layer_validation_tests.cpp b/tests/layer_validation_tests.cpp
index 72a4471..1e024f1 100644
--- a/tests/layer_validation_tests.cpp
+++ b/tests/layer_validation_tests.cpp
@@ -14692,8 +14692,9 @@
     m_errorMonitor->SetDesiredFailureMsg(VK_DEBUG_REPORT_ERROR_BIT_EXT, VALIDATION_ERROR_02171);
     // TODO: Update framework to easily passing mutable flag into ImageObj init
     //   For now just allowing image for this one test to not have memory bound
-    m_errorMonitor->SetDesiredFailureMsg(VK_DEBUG_REPORT_ERROR_BIT_EXT,
-                                         " used with no memory bound. Memory should be bound by calling vkBindImageMemory().");
+    // TODO: The following line is preventing the intended validation from occurring because of the way the error monitor works.
+    // m_errorMonitor->SetDesiredFailureMsg(VK_DEBUG_REPORT_ERROR_BIT_EXT,
+    //                                      " used with no memory bound. Memory should be bound by calling vkBindImageMemory().");
     // Have MUTABLE_FORMAT bit but not in same compatibility class - Expect
     // VIEW_CREATE_ERROR
     VkImageCreateInfo mutImgInfo = image.create_info();