Replace the unavailable linked test-case for issue 3207 with a reduced test-case

Re: issue 3207 and PR 3268.

test/pdfs/.gitignore

@@ -29,6 +29,7 @@
 !sizes.pdf
 !javauninstall-7r.pdf
 !issue3205r.pdf
+!issue3207r.pdf
 !issue3263r.pdf
 !issue3879r.pdf
 !close-path-bug.pdf

test/pdfs/issue3207.pdf.link

@@ -1 +0,0 @@
-https://www.eff.org/sites/default/files/filenode/DMCA/NTIA%20DMCA%20White%20Paper.pdf

test/test_manifest.json

@@ -2301,11 +2301,9 @@
       "type": "eq"
     },
     {  "id": "issue3207",
-      "file": "pdfs/issue3207.pdf",
+       "file": "pdfs/issue3207r.pdf",
-      "md5": "667248adae0462c7f5acc7757d97b720",
+       "md5": "617bcf475c109365a113cf9fb6711b0a",
-      "link": true,
+       "link": false,
-      "firstPage": 1,
-      "lastPage": 1,
        "rounds": 1,
        "type": "eq"
     },