Fix tests

tests/Composer/Test/Fixtures/installer/install-dev-using-dist.test

@@ -35,8 +35,7 @@ install --prefer-dist
             "dist": {
                 "type": "zip",
                 "url": "http://www.example.com/dist.zip",
-                "reference": "459720ff3b74ee0c0d159277c6f2f5df89d8a4f6",
-                "shasum": null
+                "reference": "459720ff3b74ee0c0d159277c6f2f5df89d8a4f6"
             },
             "type": "library"
         }

tests/Composer/Test/Fixtures/installer/update-changes-url.test

@@ -101,43 +101,43 @@ g/g is dev and installed in a different ref than the #ref, so it gets updated an
         {
             "name": "a/a", "version": "dev-master",
             "source": { "reference": "2222222222222222222222222222222222222222", "url": "https://github.com/a/newa", "type": "git" },
-            "dist": { "reference": "2222222222222222222222222222222222222222", "url": "https://api.github.com/repos/a/newa/zipball/2222222222222222222222222222222222222222", "type": "zip", "shasum": null },
+            "dist": { "reference": "2222222222222222222222222222222222222222", "url": "https://api.github.com/repos/a/newa/zipball/2222222222222222222222222222222222222222", "type": "zip" },
             "type": "library"
         },
         {
             "name": "b/b", "version": "2.0.3",
             "source": { "reference": "2222222222222222222222222222222222222222", "url": "https://github.com/b/newb", "type": "git" },
-            "dist": { "reference": "2222222222222222222222222222222222222222", "url": "https://api.github.com/repos/b/newb/zipball/2222222222222222222222222222222222222222", "type": "zip", "shasum": null },
+            "dist": { "reference": "2222222222222222222222222222222222222222", "url": "https://api.github.com/repos/b/newb/zipball/2222222222222222222222222222222222222222", "type": "zip" },
             "type": "library"
         },
         {
             "name": "c/c", "version": "1.0.0",
             "source": { "reference": "1111111111111111111111111111111111111111", "url": "https://github.com/c/newc", "type": "git" },
-            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/c/newc/zipball/1111111111111111111111111111111111111111", "type": "zip", "shasum": null },
+            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/c/newc/zipball/1111111111111111111111111111111111111111", "type": "zip" },
             "type": "library"
         },
         {
             "name": "d/d", "version": "dev-master",
             "source": { "reference": "1111111111111111111111111111111111111111", "url": "https://github.com/d/newd", "type": "git" },
-            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/d/newd/zipball/1111111111111111111111111111111111111111", "type": "zip", "shasum": null },
+            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/d/newd/zipball/1111111111111111111111111111111111111111", "type": "zip" },
             "type": "library"
         },
         {
             "name": "e/e", "version": "dev-master",
             "source": { "reference": "1111111111111111111111111111111111111111", "url": "https://github.com/e/newe", "type": "git" },
-            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/e/newe/zipball/1111111111111111111111111111111111111111", "type": "zip", "shasum": null },
+            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/e/newe/zipball/1111111111111111111111111111111111111111", "type": "zip" },
             "type": "library"
         },
         {
             "name": "f/f", "version": "dev-master",
             "source": { "reference": "1111111111111111111111111111111111111111", "url": "https://github.com/f/newf", "type": "git" },
-            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/f/newf/zipball/1111111111111111111111111111111111111111", "type": "zip", "shasum": null },
+            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/f/newf/zipball/1111111111111111111111111111111111111111", "type": "zip" },
             "type": "library"
         },
         {
             "name": "g/g", "version": "dev-master",
             "source": { "reference": "1111111111111111111111111111111111111111", "url": "https://github.com/g/newg", "type": "git" },
-            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/g/newg/zipball/1111111111111111111111111111111111111111", "type": "zip", "shasum": null },
+            "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/g/newg/zipball/1111111111111111111111111111111111111111", "type": "zip" },
             "type": "library"
         }
     ],