Revert riscv64 (#7657)

Related to
#7654 (comment)



<!--
!! Please DELETE this comment before posting.
We appreciate your contribution to the Jaeger project! 👋🎉
-->

## Which problem is this PR solving?
- <!-- Example: Resolves #123 -->

## Description of the changes
- 

## How was this change tested?
- 

## Checklist
- [ ] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [ ] I have signed all commits
- [ ] I have added unit tests for the new functionality
- [ ] I have run lint and test steps successfully
  - for `jaeger`: `make lint test`
  - for `jaeger-ui`: `npm run lint` and `npm run test`

Author: pavolloffay

Makefile

@@ -5,7 +5,7 @@ SHELL := /bin/bash
 JAEGER_IMPORT_PATH = github.com/jaegertracing/jaeger
 
 # PLATFORMS is a list of all supported platforms
-PLATFORMS="linux/amd64,linux/arm64,linux/s390x,linux/ppc64le,linux/riscv64,darwin/amd64,darwin/arm64,windows/amd64"
+PLATFORMS="linux/amd64,linux/arm64,linux/s390x,linux/ppc64le,darwin/amd64,darwin/arm64,windows/amd64"
 LINUX_PLATFORMS=$(shell echo "$(PLATFORMS)" | tr ',' '\n' | grep linux | tr '\n' ',' | sed 's/,$$/\n/')
 
 # SRC_ROOT is the top of the source tree.
@@ -52,11 +52,9 @@ GO=go
 GOOS ?= $(shell $(GO) env GOOS)
 GOARCH ?= $(shell $(GO) env GOARCH)
 
-# go test does not support -race flag on s390x and riscv64 architectures
+# go test does not support -race flag on s390x architecture
 ifeq ($(GOARCH), s390x)
 	RACE=
-else ifeq ($(GOARCH), riscv64)
-	RACE=
 else
 	RACE=-race
 endif

scripts/build/docker/debug/Dockerfile

@@ -10,8 +10,7 @@ COPY go.mod go.sum /go/src/debug-delve/
 
 # TODO: Remove s390x once go-delve adds support for it (https://github.com/go-delve/delve/issues/2883)
 # TODO: Remove ppc64le once support is released (https://github.com/go-delve/delve/issues/1564) - not yet as of [email protected]
-# TODO: Remove riscv64 once its supported
-RUN if [[ "$TARGETARCH" == "s390x" ||  "$TARGETARCH" == "ppc64le" ||  "$TARGETARCH" == "riscv64" ]] ; then \
+RUN if [[ "$TARGETARCH" == "s390x" ||  "$TARGETARCH" == "ppc64le" ]] ; then \
 	touch /go/bin/dlv; \
     else \
         cd /go/src/debug-delve && go mod download && go build -o /go/bin/dlv github.com/go-delve/delve/cmd/dlv; \

scripts/makefiles/BuildBinaries.mk

@@ -144,10 +144,6 @@ build-binaries-linux-arm64:
 build-binaries-linux-ppc64le:
 	GOOS=linux GOARCH=ppc64le $(MAKE) _build-platform-binaries
 
-.PHONY: build-binaries-linux-riscv64
-build-binaries-linux-riscv64:
-	GOOS=linux GOARCH=riscv64 $(MAKE) _build-platform-binaries
-
 # build all binaries for one specific platform GOOS/GOARCH
 .PHONY: _build-platform-binaries
 _build-platform-binaries: \