[chore] Fix update-otel

[sincejune]

Description

This PR fixed make update-otel to update builder-config.yaml correctly. This is the workflow we update builder-config.yaml files:

1. MULTIMOD command to update go.mod
2. updatehelper function to update builder-config.yaml according to the updated go.mod

However, make otelcontribcol/make oteltestbedcol will overwrite the updated go.mod unexpectedly before step 2.
This PR removes the unexpected make otelcontribcol/make oteltestbedcol commands.

cc @mx-psi

Link to tracking issue

n/a

Testing

n/a

Documentation

n/a

[songy23]

cc @dmitryax

[bogdandrutu]

Please don't see the reason why was done the way was done.

However, make otelcontribcol/make oteltestbedcol will overwrite the updated go.mod unexpectedly before step 2.
This PR removes the unexpected make otelcontribcol/make oteltestbedcol commands.

Without this the go.mod is not available.

[mx-psi]

@bogdandrutu Can we fix the workflow first and then look into this issue?

[bogdandrutu]

@bogdandrutu Can we fix the workflow first and then look into this issue?

Without this I cannot run the make update-otel, I am confused.

[bogdandrutu]

Let me explain one more time:
In https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/cmd/otelcontribcol you don't have a go.mod, but the updatehelper requires it. So I am not sure how you intend to make this work.

I made my point, can move forward if you think this is the right thing

[sincejune]

Please don't see the reason why was done the way was done.

However, make otelcontribcol/make oteltestbedcol will overwrite the updated go.mod unexpectedly before step 2.
This PR removes the unexpected make otelcontribcol/make oteltestbedcol commands.

Without this the go.mod is not available.

@bogdandrutu Thanks! Updated the PR according to your feedback. cc @mx-psi @codeboten