Merge pull request #30708 from maximedenes/fix-quickchick

coqPackages.QuickChick: remove support for coq 8.7

pkgs/development/coq-modules/QuickChick/default.nix

···
       sha256 = "06kwnrfndnr6w8bmaa2s0i0rkqyv081zj55z3vcyn0wr6x6mlsz9";
     };
 
-    "8.7" = {
-      version = "20170616";
-      rev = "366ee3f8e599b5cab438a63a09713f44ac544c5a";
-      sha256 = "06kwnrfndnr6w8bmaa2s0i0rkqyv081zj55z3vcyn0wr6x6mlsz9";
-    };
   }."${coq.coq-version}"
 ; in