[llvm] [BOLT] Remove llvm-bolt-wrapper logic from NFC-Mode (PR #146209)

[David Spickett via llvm-commits]

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@@ -90,7 +89,6 @@ def main():
         sys.exit("Source directory is not found")
 
     script_dir = os.path.dirname(os.path.abspath(__file__))
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DavidSpickett wrote:

script_dir appears to be unused now.

https://github.com/llvm/llvm-project/pull/146209