Remove old multicol tests that were only run with the old implementation.

LayoutTests/TestExpectations

Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index e72ea6d18f0835dc0532e1a616d0e07379a2e783..21df817a892c75be03d8ebe6671136f6e2607171 100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -1073,39 +1073,6 @@ crbug.com/437112 virtual/gpu/fast/canvas/canvas-scale-drawImage-shadow.html [ Pa
 
 crbug.com/486830 virtual/slimmingpaint/fast/canvas/canvas-scale-drawImage-shadow.html [ Failure ]
 
-# BEGIN - Old multicol tests that should be removed once the old implementation is gone
-# Imperfect column balancing algorithm in the old implementation:
-crbug.com/408123 fast/multicol/border-padding-pagination.html [ Skip ]
-crbug.com/408123 fast/multicol/vertical-lr/border-padding-pagination.html [ Skip ]
-crbug.com/408123 fast/multicol/vertical-rl/border-padding-pagination.html [ Skip ]
-# CR and ED versions of the multicol spec are contradictory. The new implementation follows the ED. The old follows the CR.
-crbug.com/408123 fast/multicol/column-rules-stacking.html [ Skip ]
-# We have enough non-DRT tests for max-height, so no need for this one.
-crbug.com/408123 fast/multicol/max-height-columns-block.html [ Skip ]
-# These don't test anything unique.
-crbug.com/408123 fast/multicol/span/before-child-anonymous-column-block.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-immediate-child-complex-splitting.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-immediate-child-generated-content.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-immediate-child-property-removal.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-immediate-columns-child-dynamic.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-immediate-columns-child-removal.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-immediate-columns-child.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-nested-columns-child-dynamic.html [ Skip ]
-crbug.com/408123 fast/multicol/span/span-as-nested-columns-child.html [ Skip ]
-# Doesn't render according to the pass condition in the old implementation. Rendered idendically in the new one. Doesn't test anything unique.
-crbug.com/408123 fast/multicol/span/span-as-nested-inline-block-child.html [ Skip ]
-# Rendered correctly (i.e. not in accordance with the invalid pass conditions) in both the old and new implementation. Doesn't test anything unique.
-crbug.com/408123 fast/multicol/span/span-margin-collapsing.html [ Skip ]
-# These are superseded by tests in fast/pagination/
-crbug.com/408123 fast/multicol/pagination-h-horizontal-bt.html [ Skip ]
-crbug.com/408123 fast/multicol/pagination-h-horizontal-tb.html [ Skip ]
-crbug.com/408123 fast/multicol/pagination-h-vertical-lr.html [ Skip ]
-crbug.com/408123 fast/multicol/pagination-h-vertical-rl.html [ Skip ]
-crbug.com/408123 fast/multicol/pagination-v-horizontal-bt.html [ Skip ]
-crbug.com/408123 fast/multicol/pagination-v-horizontal-tb.html [ Skip ]
-crbug.com/408123 fast/multicol/pagination-v-vertical-lr.html [ Skip ]
-crbug.com/408123 fast/multicol/pagination-v-vertical-rl.html [ Skip ]
-
 crbug.com/467477 fast/multicol/vertical-rl/nested-columns.html [ ImageOnlyFailure ]
 crbug.com/467477 virtual/slimmingpaint/fast/multicol/vertical-rl/nested-columns.html [ Skip ]