ddraw/test: Completely disable the refcount stealing GetClipper call.

dlls/ddraw/tests/ddraw1.c

@@ -12938,12 +12938,13 @@ static void test_clipper_refcount(void)
     IDirectDrawClipper_Release(clipper);
     IDirectDrawClipper_Release(clipper);
 
-    if (!ddraw_is_nvidia(ddraw))
+    if (0)
     {
         /* Disabled because it causes heap corruption (HeapValidate fails and random
          * hangs in a later HeapFree) on Windows on one of my Machines: MacbookPro 10,1
          * running Windows 10 18363.535 and Nvidia driver 425.31. Driver version 441.66
-         * is affected too.
+         * is affected too. Some testbot machines have crashes directly in GetClipper
+         * or proceed with a corrupted heap too.
          *
          * The same Windows and driver versions run the test without heap corruption on
          * a Geforce 1060 GTX card. I have not seen the problem on AMD GPUs either. */

dlls/ddraw/tests/ddraw2.c

@@ -13767,12 +13767,13 @@ static void test_clipper_refcount(void)
     IDirectDrawClipper_Release(clipper);
     IDirectDrawClipper_Release(clipper);
 
-    if (!ddraw_is_nvidia(ddraw))
+    if (0)
     {
         /* Disabled because it causes heap corruption (HeapValidate fails and random
          * hangs in a later HeapFree) on Windows on one of my Machines: MacbookPro 10,1
          * running Windows 10 18363.535 and Nvidia driver 425.31. Driver version 441.66
-         * is affected too.
+         * is affected too. Some testbot machines have crashes directly in GetClipper
+         * or proceed with a corrupted heap too.
          *
          * The same Windows and driver versions run the test without heap corruption on
          * a Geforce 1060 GTX card. I have not seen the problem on AMD GPUs either. */

dlls/ddraw/tests/ddraw4.c

@@ -16413,12 +16413,13 @@ static void test_clipper_refcount(void)
     IDirectDrawClipper_Release(clipper);
     IDirectDrawClipper_Release(clipper);
 
-    if (!ddraw_is_nvidia(ddraw))
+    if (0)
     {
         /* Disabled because it causes heap corruption (HeapValidate fails and random
          * hangs in a later HeapFree) on Windows on one of my Machines: MacbookPro 10,1
          * running Windows 10 18363.535 and Nvidia driver 425.31. Driver version 441.66
-         * is affected too.
+         * is affected too. Some testbot machines have crashes directly in GetClipper
+         * or proceed with a corrupted heap too.
          *
          * The same Windows and driver versions run the test without heap corruption on
          * a Geforce 1060 GTX card. I have not seen the problem on AMD GPUs either. */

dlls/ddraw/tests/ddraw7.c

@@ -16340,12 +16340,13 @@ static void test_clipper_refcount(void)
     IDirectDrawClipper_Release(clipper);
     IDirectDrawClipper_Release(clipper);
 
-    if (!ddraw_is_nvidia(ddraw))
+    if (0)
     {
         /* Disabled because it causes heap corruption (HeapValidate fails and random
          * hangs in a later HeapFree) on Windows on one of my Machines: MacbookPro 10,1
          * running Windows 10 18363.535 and Nvidia driver 425.31. Driver version 441.66
-         * is affected too.
+         * is affected too. Some testbot machines have crashes directly in GetClipper
+         * or proceed with a corrupted heap too.
          *
          * The same Windows and driver versions run the test without heap corruption on
          * a Geforce 1060 GTX card. I have not seen the problem on AMD GPUs either. */