[llvm] [MLGO] Remove absl dependency from scripts (PR #78880)

[Aiden Grossman via llvm-commits]

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@@ -12,43 +12,38 @@
   --default_args="<list of space separated flags>"
 """
 
-from absl import app
-from absl import flags
-from absl import logging
+import logging
+import argparse
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boomanaiden154 wrote:

Black doesn't do it automatically. I've put the script imports into alphabetical order.

https://github.com/llvm/llvm-project/pull/78880