remove last MakeSSA pass

Author: charles-cooper

vyper/venom/__init__.py

@@ -78,13 +78,6 @@ def _run_passes(fn: IRFunction, optimize: OptimizationLevel, ac: IRAnalysesCache
     MemMergePass(ac, fn).run_pass()
 
     LowerDloadPass(ac, fn).run_pass()
-    # NOTE: MakeSSA is after algebraic optimization it currently produces
-    #       smaller code by adding some redundant phi nodes. This is not a
-    #       problem for us, but we need to be aware of it, and should be
-    #       removed when the dft pass is fixed to produce the smallest code
-    #       without making the code generation more expensive by running
-    #       MakeSSA again.
-    MakeSSA(ac, fn).run_pass()
     BranchOptimizationPass(ac, fn).run_pass()
 
     AlgebraicOptimizationPass(ac, fn).run_pass()