Drop the hash on package set

JordanMartinez · JordanMartinez · commit 5262ede37fe3 · 2022-04-23T07:57:51.000-05:00
As we make changes to the set, this will not match and cause failure
diff --git a/packages.dhall b/packages.dhall
@@ -1,5 +1,4 @@
 let upstream =
       https://raw.githubusercontent.com/purescript/package-sets/prepare-0.15/src/packages.dhall
-        sha256:b1c6d06132b7cbf1e93b1e5343044fba1604b50bfbe02d8f80a3002e71569c59
 
 in  upstream
