Remove sign-dist target.

Makefile

@@ -20,10 +20,3 @@ $(libsamplerate):
 
 
 include $(RACK_DIR)/plugin.mk
-
-# Only Fundamental needs this because it's bundled with Rack
-sign-dist:
-ifdef ARCH_MAC
-	codesign --verbose --sign "Developer ID Application: Andrew Belt (VRF26934X5)" --deep dist/$(SLUG)/$(TARGET)
-	cd dist && zip -q -9 -r $(SLUG)-$(VERSION)-$(ARCH).zip $(SLUG)
-endif