Revert "Emergency transformers bound update."

This reverts commit 48c6f00b.

Revert "Emergency transformers bound update."
cf40fd8c · Edward Z. Yang · 9d460783 · cf40fd8c
Commit cf40fd8c authored 8 years ago by Edward Z. Yang
--- a/cabal.project
+++ b/cabal.project
 packages: Cabal/ cabal-testsuite/ cabal-install/
-constraints: unix >= 2.7.1.0,
-             transformers < 0.5.3.0 || > 0.5.3.0
+constraints: unix >= 2.7.1.0

 -- Uncomment to allow picking up extra local unpacked deps:
 --optional-packages: */