Disable dataflow activity

Author: vimarsh6739

enzyme/Enzyme/MLIR/Passes/Passes.td

@@ -91,7 +91,7 @@ def EnzymeActivityOpt : Pass<"enzyme-activity-opt">{
       /*C++ variable name=*/"dataflow",
       /*CLI argument=*/"dataflow",
       /*type=*/"bool",
-      /*default=*/"true",
+      /*default=*/"false",
       /*description=*/"Whether to use the new Dataflow activity analysis"
     >,
     Option<