Remove fmtlib explicit dependency.
#9702
Merged
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This PR removes the temporary fmtlib dependency introduced in #9650 (see issue #9653).
As explained in this comment, the dependency was only added to work around a build issue that should have been fixed upstream in PyTorch. Before the
fmtlibversion bump to 12 in PyTorch (pytorch/pytorch#163441),fmtlibheaders were exported by default. After the bump, they stopped being exported, which caused the issue.That behavior has since been fixed in PyTorch (pytorch/pytorch#164139), so we can safely remove the explicit fmtlib dependency.