Remove unnecessary branching in Makefile

Author: vitaliy

Makefile

@@ -1,15 +1,6 @@
 GIT_REF_TAG := $(shell git describe --tags)
 BUILD_TAGS = rocksdb
-ifdef OS
-# windows
 BUILD_LD_FLAGS = "-X=github.com/iotaledger/wasp/components/app.Version=$(GIT_REF_TAG)"
-else
-ifeq ($(shell uname -m), arm64)
-BUILD_LD_FLAGS = "-X=github.com/iotaledger/wasp/components/app.Version=$(GIT_REF_TAG)"
-else
-BUILD_LD_FLAGS = "-X=github.com/iotaledger/wasp/components/app.Version=$(GIT_REF_TAG)"
-endif
-endif
 DOCKER_BUILD_ARGS = # E.g. make docker-build "DOCKER_BUILD_ARGS=--tag wasp:devel"
 
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