[CI] Reduce number of cases for test_convert2d (#7077)

Author: ThomasRaoux

python/test/unit/language/test_core.py

@@ -5937,14 +5937,9 @@ def kernel(Out):
     DotOperandLayout(parent=MmaLayout([3, 0], [4, 1], [1, 1], [1, 1], [1, 0], [16, 32, 16]), op_idx=0, k_width=2),
     DotOperandLayout(parent=MmaLayout([3, 0], [4, 1], [1, 1], [1, 1], [1, 0], [16, 32, 16]), op_idx=0, k_width=1),
     MmaLayout([2, 0], [4, 1], [1, 1], [1, 1], [1, 0], [16, 8]),
-    DotOperandLayout(parent=MmaLayout([2, 0], [4, 1], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=0, k_width=2),
     DotOperandLayout(parent=MmaLayout([2, 0], [4, 1], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=1, k_width=2),
     DotOperandLayout(parent=MmaLayout([2, 0], [2, 2], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=0, k_width=2),
-    DotOperandLayout(parent=MmaLayout([2, 0], [2, 2], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=1, k_width=2),
     DotOperandLayout(parent=MmaLayout([2, 0], [4, 1], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=0, k_width=8),
-    DotOperandLayout(parent=MmaLayout([2, 0], [4, 1], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=1, k_width=8),
-    DotOperandLayout(parent=MmaLayout([2, 0], [2, 2], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=0, k_width=8),
-    DotOperandLayout(parent=MmaLayout([2, 0], [2, 2], [1, 1], [1, 1], [1, 0], [16, 8]), op_idx=1, k_width=8),
     SliceLayout(
         dim=1,
         parent=DotOperandLayout(parent=MmaLayout([3, 0], [4, 1, 1], [1, 1, 1], [1, 1, 1], [2, 1, 0], [16, 32, 16]),