Redefine thrift-gen types as aliases to jaeger-idl (jaegertracing#6619)

## Which problem is this PR solving?
- jaegertracing#6617

## Description of the changes
- remove auto-generated code and replace its types / functions with
aliases to jaeger-idl hosted types

## 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`

---------

Signed-off-by: danish9039 <danishsiddiqui040@gmail.com>

Makefile.Thrift.mk

@@ -14,13 +14,8 @@ thrift-image:
 .PHONY: thrift
 thrift: idl/thrift/jaeger.thrift thrift-image
 	[ -d $(THRIFT_GEN_DIR) ] || mkdir $(THRIFT_GEN_DIR)
-	$(THRIFT) -o /data --gen go:$(THRIFT_GO_ARGS) --out /data/$(THRIFT_GEN_DIR) /data/idl/thrift/agent.thrift
-	$(SED) -i.bak 's|"zipkincore"|"$(JAEGER_IMPORT_PATH)/thrift-gen/zipkincore"|g' $(THRIFT_GEN_DIR)/agent/*.go
-	$(SED) -i.bak 's|"jaeger"|"$(JAEGER_IMPORT_PATH)/thrift-gen/jaeger"|g' $(THRIFT_GEN_DIR)/agent/*.go
-	$(THRIFT) -o /data --gen go:$(THRIFT_GO_ARGS) --out /data/$(THRIFT_GEN_DIR) /data/idl/thrift/jaeger.thrift
 	$(THRIFT) -o /data --gen go:$(THRIFT_GO_ARGS) --out /data/$(THRIFT_GEN_DIR) /data/idl/thrift/sampling.thrift
 	$(THRIFT) -o /data --gen go:$(THRIFT_GO_ARGS) --out /data/$(THRIFT_GEN_DIR) /data/idl/thrift/baggage.thrift
-	$(THRIFT) -o /data --gen go:$(THRIFT_GO_ARGS) --out /data/$(THRIFT_GEN_DIR) /data/idl/thrift/zipkincore.thrift
 	rm -rf thrift-gen/*/*-remote thrift-gen/*/*.bak
 
 idl/thrift/jaeger.thrift: