build: drop JERBOA_STATIC for jdns (it broke server sockets)

ober

8e539ff3705021476d35b4d9733b2b1ab5b86862

diff --git a/.jerbuild b/.jerbuild
index 650c5b9..61bb9a7 100644
--- a/.jerbuild
+++ b/.jerbuild
@@ -8,10 +8,6 @@
 (entry "bin/jdns.ss")
 (output "jdns")
 (libdirs "lib")
-;; Static binary: static main.c sets JERBOA_STATIC=1 so the std modules use the
-;; linked-in jerboa-native symbols (registered from the generated list) rather
-;; than dlopen. The list is regenerated per-platform by the Makefile.
-(main-c "support/static-main.c")
 (ffi-symbols "support/ffi-symbols.gen")
 ;; Build the sandboxed DNS/CDB wasm payloads before embedding.
 (pre-build "sh wasm/build.sh")