Remove flag that the macOS linker does not understand.
https://bugs.netsurf-browser.org/mantis/view.php?id=2861
--- netsurf/Makefile.orig	2024-01-01 21:57:46.000000000 -0600
+++ netsurf/Makefile	2024-01-01 22:19:06.000000000 -0600
@@ -231,7 +231,6 @@
 
 # We trace during link so that we can determine if a libary changes under us in
 # order to re-link.  This *may* be gcc specific, so may need tweaks in future.
-LDFLAGS += -Wl,--trace
 
 # ----------------------------------------------------------------------------
 # General make rules