debian/rules: Drop no longer needed -Wl,--as-needed

Default since Bullseye

debian/rules

@@ -8,9 +8,6 @@ SYMBOLS_generated := $(patsubst %.in,%,$(SYMBOLS_in))
 
 libpopplerN := $(shell sed -rn 's/^Package:[[:space:]]*(libpoppler[0-9]+)[[:space:]]*$$/\1/p' debian/control)
 
-# avoid overlinking and reduce library dependencies
-export DEB_LDFLAGS_MAINT_APPEND := -Wl,--as-needed
-
 # enable all the hardening options
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all