Remove libomp from Mac linker

Makefile

@@ -19,7 +19,7 @@ SOURCES += $(wildcard src/*.cpp src/*/*.cpp)
 ifdef ARCH_MAC
 	LDFLAGS += -lpthread -ldl \
 		-framework Cocoa -framework OpenGL -framework IOKit -framework CoreVideo -framework CoreAudio -framework CoreMIDI \
-		-Ldep/lib dep/lib/libglfw3.a dep/lib/libGLEW.a dep/lib/libjansson.a dep/lib/libspeexdsp.a dep/lib/libzip.a dep/lib/libz.a dep/lib/librtaudio.a dep/lib/librtmidi.a dep/lib/libcrypto.a dep/lib/libssl.a dep/lib/libcurl.a dep/lib/libomp.a
+		-Ldep/lib dep/lib/libglfw3.a dep/lib/libGLEW.a dep/lib/libjansson.a dep/lib/libspeexdsp.a dep/lib/libzip.a dep/lib/libz.a dep/lib/librtaudio.a dep/lib/librtmidi.a dep/lib/libcrypto.a dep/lib/libssl.a dep/lib/libcurl.a
 	TARGET := Rack
 	BUNDLE := dist/$(TARGET).app
 endif