Remove Mathieu's key

Author: jmct

cabal-install/src/Distribution/Client/Config.hs

@@ -931,8 +931,6 @@ defaultHackageRemoteRepoKeys =
     "0a5c7ea47cd1b15f01f5f51a33adda7e655bc0f0b0615baa8e271f4c3351e21d"
   , -- Norman Ramsey (ZI8di3a9Un0s2RBrt5GwVRvfOXVuywADfXGPZfkiDb0=)
     "51f0161b906011b52c6613376b1ae937670da69322113a246a09f807c62f6921"
-  , -- Mathieu Boespflug (ydN1nGGQ79K1Q0nN+ul+Ln8MxikTB95w0YdGd3v3kmg=)
-    "be75553f3c7ba1dbe298da81f1d1b05c9d39dd8ed2616c9bddf1525ca8c03e48"
   , -- Joachim Breitner (5iUgwqZCWrCJktqMx0bBMIuoIyT4A1RYGozzchRN9rA=)
     "d26e46f3b631aae1433b89379a6c68bd417eb5d1c408f0643dcc07757fece522"
   , -- Tikhon Jelvis (06nM6r1kOYt49YE5e1+j8VKiiYUFjFQ6HrOpPZu+fDE=)