Remove text-conversion workaround

cabal.project

@@ -20,12 +20,6 @@ source-repository-package
     tag: bf6d28cf989b70286e12fecc183d5bbf5454a1a2
     subdir: hpath-directory
 
--- https://github.com/cjdev/text-conversions/pull/10
-source-repository-package
-    type: git
-    location: https://github.com/hasufell/text-conversions.git
-    tag: 9abf0e5e5664a3178367597c32db19880477a53c
-
 optimization: 2
 
 package streamly