Net: drop the unused third-party lookup host

The allowlist carried a non-Sony host for a lookup that was never built;
the function was a stub that always returned -1. Removing both leaves
behaviour unchanged and keeps every request on the PlayStation CDN.

src/patchdl_net.c

@@ -67,7 +67,6 @@ static const char *ALLOWED_HOSTS[] = {
     "sgst.prod.dl.playstation.net",
     "gst.prod.dl.playstation.net",
     "gs2.ww.prod.dl.playstation.net",
-    "prosperopatches.com",
     NULL,
 };
 

src/patchdl_resolve.c

@@ -52,16 +52,6 @@ lookup_tsv(const char *title_id, char *url_out, size_t url_sz) {
     return -1;
 }
 
-static int
-lookup_prosperopatches(const char *title_id, char *url_out, size_t url_sz) {
-    /* TODO: implement live lookup once API endpoint is confirmed on-device.
-       prosperopatches.com serves Sony CDN index links for PS5 titles. */
-    (void)title_id;
-    (void)url_out;
-    (void)url_sz;
-    return -1;
-}
-
 int
 patchdl_resolve_url(const char *title_id, char *url_out, size_t url_sz) {
     if (!title_id) return -1;
@@ -74,8 +64,5 @@ patchdl_resolve_url(const char *title_id, char *url_out, size_t url_sz) {
         strncmp(title_id, "PPSC", 4))
         return -1;
 
-    if (!lookup_tsv(title_id, url_out, url_sz))
+    return lookup_tsv(title_id, url_out, url_sz);
-        return 0;
-
-    return lookup_prosperopatches(title_id, url_out, url_sz);
 }