Check RDC export/import in all simple tri tests, but *only* in those

util/test/tests/GL/GL_DX_Interop.py

@@ -10,5 +10,3 @@ class GL_DX_Interop(rdtest.TestCase):
     def check_capture(self):
         self.check_final_backbuffer()
 
-        self.check_export(self.capture_filename)
-

util/test/tests/GL/GL_VAO_0.py

@@ -9,8 +9,6 @@ class GL_VAO_0(rdtest.TestCase):
     def check_capture(self):
         self.check_final_backbuffer()
 
-        self.check_export(self.capture_filename)
-
         draw = self.find_draw("Draw")
 
         # There are 4 draws with variations on client-memory VBs or IBs

util/test/tests/Vulkan/VK_Simple_Triangle.py

@@ -9,6 +9,8 @@ class VK_Simple_Triangle(rdtest.TestCase):
     def check_capture(self):
         self.check_final_backbuffer()
 
+        self.check_export(self.capture_filename)
+
         draw = self.find_draw("Draw")
 
         self.controller.SetFrameEvent(draw.eventId, False)