Disable LookaheadSwap mapping benchmarks due to timeout. (Qiskit/qisk…

…it-metapackage#845)

The lookahead swap mapping passes timeout consistently and have generated no data (likely due to Qiskit#2171 ) but cost roughly an hour of benchmarking runtime per terra commit.

This commit disables these benchmarks while the problems are investigated.

test/benchmarks/mapping_passes.py

@@ -83,25 +83,26 @@ def track_stochastic_swap_swap_count(self, _, __):
         swap.property_set['layout'] = self.layout
         return swap.run(self.dag).count_ops().get('swap')
 
-    def time_lookahead_swap(self, _, __):
-        swap = LookaheadSwap(self.coupling_map)
-        swap.property_set['layout'] = self.layout
-        swap.run(self.dag)
-
-    def peakmem_lookahead_swap(self, _, __):
-        swap = LookaheadSwap(self.coupling_map)
-        swap.property_set['layout'] = self.layout
-        swap.run(self.dag)
-
-    def track_lookahead_swap_depth(self, _, __):
-        swap = LookaheadSwap(self.coupling_map)
-        swap.property_set['layout'] = self.layout
-        return swap.run(self.dag).depth()
-
-    def track_lookahead_swap_swap_count(self, _, __):
-        swap = LookaheadSwap(self.coupling_map)
-        swap.property_set['layout'] = self.layout
-        return swap.run(self.dag).depth().count_ops().get('swap')
+    # Disable lookahead swap benchmarks due to timeout.
+    # def time_lookahead_swap(self, _, __):
+    #     swap = LookaheadSwap(self.coupling_map)
+    #     swap.property_set['layout'] = self.layout
+    #     swap.run(self.dag)
+
+    # def peakmem_lookahead_swap(self, _, __):
+    #     swap = LookaheadSwap(self.coupling_map)
+    #     swap.property_set['layout'] = self.layout
+    #     swap.run(self.dag)
+
+    # def track_lookahead_swap_depth(self, _, __):
+    #     swap = LookaheadSwap(self.coupling_map)
+    #     swap.property_set['layout'] = self.layout
+    #     return swap.run(self.dag).depth()
+
+    # def track_lookahead_swap_swap_count(self, _, __):
+    #     swap = LookaheadSwap(self.coupling_map)
+    #     swap.property_set['layout'] = self.layout
+    #     return swap.run(self.dag).depth().count_ops().get('swap')
 
     def time_basic_swap(self, _, __):
         swap = BasicSwap(self.coupling_map)