grass: drop clang integer patch

Problem is fixed in
https://github.com/OSGeo/grass/pull/3325

Closes #340475

pkgs/applications/gis/grass/clang-integer-conversion.patch

@@ -1,21 +0,0 @@
-diff -ur a/db/drivers/mysql/db.c b/db/drivers/mysql/db.c
---- a/db/drivers/mysql/db.c	1969-12-31 19:00:01.000000000 -0500
-+++ b/db/drivers/mysql/db.c	2023-11-09 23:26:25.329700495 -0500
-@@ -52,9 +52,16 @@
- 
-         db_get_login2("mysql", name, &user, &password, &host, &port);
- 
-+        const char* errstr;
-+        unsigned int port_number = (unsigned int)strtonum(port, 0, 65536, &errstr);
-+        if (errstr != NULL) {
-+            db_d_append_error("%s", errstr);
-+            return DB_FAILED;
-+        }
-+
-         connection = mysql_init(NULL);
-         res = mysql_real_connect(connection, host, user, password,
--                                 connpar.dbname, port, NULL, 0);
-+                                 connpar.dbname, port_number, NULL, 0);
- 
-         if (res == NULL) {
-             db_d_append_error("%s\n%s", _("Connection failed."),

pkgs/applications/gis/grass/default.nix

@@ -90,11 +90,6 @@ stdenv.mkDerivation (finalAttrs: {
 
   strictDeps = true;
 
-  patches = lib.optionals stdenv.isDarwin [
-    # Fix conversion of const char* to unsigned int.
-    ./clang-integer-conversion.patch
-  ];
-
   configureFlags = [
     "--with-blas"
     "--with-cairo-ldflags=-lfontconfig"