phpExtensions.igbinary: Move to separate directory

pkgs/development/php-packages/igbinary/default.nix

@@ -0,0 +1,14 @@
+{ buildPecl, lib }:
+
+buildPecl {
+  pname = "igbinary";
+
+  version = "3.0.1";
+  sha256 = "1w8jmf1qpggdvq0ndfi86n7i7cqgh1s8q6hys2lijvi37rzn0nar";
+
+  configureFlags = [ "--enable-igbinary" ];
+  makeFlags = [ "phpincludedir=$(dev)/include" ];
+  outputs = [ "out" "dev" ];
+
+  meta.maintainers = lib.teams.php.members;
+}

pkgs/top-level/php-packages.nix

@@ -74,18 +74,7 @@ in
 
     event = callPackage ../development/php-packages/event { };
 
-    igbinary = buildPecl {
-      version = "3.0.1";
-      pname = "igbinary";
-
-      sha256 = "1w8jmf1qpggdvq0ndfi86n7i7cqgh1s8q6hys2lijvi37rzn0nar";
-
-      configureFlags = [ "--enable-igbinary" ];
-      makeFlags = [ "phpincludedir=$(dev)/include" ];
-      outputs = [ "out" "dev" ];
-
-      meta.maintainers = lib.teams.php.members;
-    };
+    igbinary = callPackage ../development/php-packages/igbinary { };
 
     imagick = buildPecl {
       version = "3.4.4";