Remove unused vars from Makefile

ratemon/runtime/new/Makefile

@@ -21,15 +21,7 @@ INCLUDES := -I$(OUTPUT) -I../../../libbpf/include/uapi -I$(dir $(VMLINUX))
 CFLAGS := -g -Wall
 ALL_LDFLAGS := $(LDFLAGS) $(EXTRA_LDFLAGS)
 
-APPS = minimal bootstrap ratemon_test
-
-CARGO ?= $(shell which cargo)
-ifeq ($(strip $(CARGO)),)
-BZS_APPS :=
-else
-BZS_APPS := profile
-APPS += $(BZS_APPS)
-endif
+APPS = ratemon_test
 
 # Get Clang's default includes on this system. We'll explicitly add these dirs
 # to the includes list when compiling with `-target bpf` because otherwise some