[receiver/jaeger] Remove dependency on jaeger/cmd/agent (#38655)

#### Description
* Move several files for Thrift UDP servers from Jaeger codebase as of
jaegertracing/jaeger@712c1bc
* Removed metrics-related code from those files because the existing
code in `jaegerreceiver` was passing null metrics factory anyway. The
regular receiver metrics will be available, but not Jaeger-specific
metrics about UDP packets (can be re-added later using OTEL SDK, but the
whole UDP path is deprecated).
* Remove Zipkin-related tests since Zipkin over UDP is not supported in
`jaegerreceiver`.

#### Link to tracking issue
Part of jaegertracing/jaeger#6704

#### Testing
All code includes extensive unit tests

---------

Signed-off-by: Yuri Shkuro <[email protected]>

Author: yurishkuro

.chloggen/remove-jaeger-agent-dependency.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: 'enhancement'
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: jaegerreceiver
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Remove dependency on jaeger/cmd/agent
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [38655]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

cmd/opampsupervisor/go.mod

@@ -68,7 +68,6 @@ require (
 	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/iancoleman/strcase v0.3.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/jaegertracing/jaeger v1.67.0 // indirect
 	github.com/jaegertracing/jaeger-idl v0.5.0 // indirect
 	github.com/jonboulle/clockwork v0.5.0 // indirect
 	github.com/jpillora/backoff v1.0.0 // indirect

cmd/opampsupervisor/go.sum

@@ -75,7 +75,6 @@ require (
 	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/iancoleman/strcase v0.3.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/jaegertracing/jaeger v1.67.0 // indirect
 	github.com/jaegertracing/jaeger-idl v0.5.0 // indirect
 	github.com/jonboulle/clockwork v0.5.0 // indirect
 	github.com/jpillora/backoff v1.0.0 // indirect