remove loguru artifact from Makefile

Makefile

@@ -2,7 +2,7 @@ target = r
 CXX = g++
 CXX_FLAGS := -std=c++14 -Ispdlog/include -Wall 
 LD_FLAGS := -lpthread -ldl
-# LOGURU_FLAG := -DLOGURU_SCOPE_TIME_PRECISION=9
+
 BUILD := ./build
 OBJS := $(BUILD)/client.o
 
@@ -12,10 +12,6 @@ $(BUILD)/%.o: %.cc
 	@mkdir -p $(BUILD)
 	g++ -c $< -o $@ $(CXX_FLAGS) 
 
-$(BUILD)/loguru.o:
-	@mkdir -p $(BUILD)
-	g++ -c loguru/loguru.cpp -Iloguru -o $@ $(CXX_FLAGS) $(LOGURU_FLAG)
-
 r: $(OBJS)
 	g++ -o $@ $^ $(LD_FLAGS)