Change basepath and Remove Unused YAML for Jaeger demo deployment (#7374)

## Which problem is this PR solving?
- Part of #7115  

## Description of the changes
- Change base path for trace-generator 
- Removed Unused manifests since we are handling everything with Helm
charts now

## 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: chahat sagar <[email protected]>

Author: chahatsagarmain

examples/oci/load-generator/generate_traces.py

@@ -5,7 +5,7 @@
 import random
 import time
 
-url = "http://jaeger-hotrod.default.svc.cluster.local:80/dispatch" 
+url = "http://jaeger-hotrod.default.svc.cluster.local:80/hotrod/dispatch" # /hotrod is the basepath
 
 customer_ids = [123, 392, 731, 567]
 i = 0