update readme to remove configuration working group (#3297)

* update readme to remove configuration working group

With the stability of the Configuration schema being achieved, the goal of the original working group has been reached and the project completed. I would recommend future issues with the configuration specification and schema be folded into the general specification call.

Signed-off-by: alex boten <223565+codeboten@users.noreply.github.com>

* update sigs.yml

Signed-off-by: alex boten <223565+codeboten@users.noreply.github.com>

---------

Signed-off-by: alex boten <223565+codeboten@users.noreply.github.com>

Author: codeboten

README.md

@@ -133,7 +133,6 @@ SIG-specific GitHub discussions.
 |------|--------------|---------------|---------------|-----------------|--------------------------------|--------------------------------|
 | Specification: General + OTel Maintainers Sync&nbsp;<a id="sig-specification" href="#sig-specification"><sup>🔗</sup></a> | Tuesday at 08:00 PT | [Google Doc](https://docs.google.com/document/d/1pdvPeKjA8v8w_fGKAN68JjWBmVJtPCpqdi9IZrd6eEo) | [#otel-specification](https://cloud-native.slack.com/archives/C01N7PP1THC) | [calendar-spec-general](https://groups.google.com/a/opentelemetry.io/g/calendar-spec-general) |  |  | 
 | Specification: Sampling&nbsp;<a id="sig-sampling" href="#sig-sampling"><sup>🔗</sup></a> | Thursday at 08:00 PT | [Google Doc](https://docs.google.com/document/d/1NqhCcePaj--L8CUIBWV6lblR0nUD8ai6AzkW9_YcEOg) | [#otel-sampling](https://cloud-native.slack.com/archives/C027DS6GZD3) | [calendar-spec-sampling](https://groups.google.com/a/opentelemetry.io/g/calendar-spec-sampling) | [Josh MacDonald](https://github.com/jmacd) | [Juraci Paixão Kröhling](https://github.com/jpkrohling) | 
-| Specification: Configuration&nbsp;<a id="sig-config-file" href="#sig-config-file"><sup>🔗</sup></a> | Every other Monday at 08:00 PT | [Google Doc](https://docs.google.com/document/d/1uNgWQLQZcSVfBLRXfW9XCVJmKa5NH9R15fSOXhmpGWw) | [#otel-config-file](https://cloud-native.slack.com/archives/C0476L7UJT1) | [calendar-spec-config](https://groups.google.com/a/opentelemetry.io/g/calendar-spec-config) | [Carlos Alberto](https://github.com/carlosalberto),<br/>[Jack Berg](https://github.com/jack-berg) | [Marylia Gutierrez](https://github.com/maryliag) | 
 | Specification: Logs&nbsp;<a id="sig-spec-logs" href="#sig-spec-logs"><sup>🔗</sup></a> | Tuesday at 10:00 PT | [Google Doc](https://docs.google.com/document/d/1BKjQWP32FXL9g1cGbyj7DMXV1Uq_RL8_78rWaMBhN0A) | [#otel-spec-logs](https://cloud-native.slack.com/archives/C062HUREGUV) | [calendar-spec-logs](https://groups.google.com/a/opentelemetry.io/g/calendar-spec-logs) | [Ted Young](https://github.com/tedsuo),<br/>[Trask Stalnaker](https://github.com/trask) | [Trask Stalnaker](https://github.com/trask) | 
 | Semantic Conventions: General&nbsp;<a id="sig-semantic-conventions" href="#sig-semantic-conventions"><sup>🔗</sup></a> | Monday at 08:00 PT | [Google Doc](https://docs.google.com/document/d/10xG7DNKWRhxNmFGt3yYd3980a9uwS8lMl2LvQL3VNK8) | [#otel-semantic-conventions](https://cloud-native.slack.com/archives/C041APFBYQP) | [calendar-semconv](https://groups.google.com/a/opentelemetry.io/g/calendar-semconv) | [Armin Ruech](https://github.com/arminru),<br/>[Josh Suereth](https://github.com/jsuereth),<br/>[Reiley Yang](https://github.com/reyang) | [Trask Stalnaker](https://github.com/trask) | 
 | Semantic Conventions: System Metrics&nbsp;<a id="sig-system-metrics" href="#sig-system-metrics"><sup>🔗</sup></a> | Thursday at 07:30 PT | [Google Doc](https://docs.google.com/document/d/1p5TH57t43XpxA48onLzX4PIr3g6ydYKCtR_AUlsCnQk) | [#otel-system-metrics](https://cloud-native.slack.com/archives/C05CTFE9U4A) | [calendar-semconv](https://groups.google.com/a/opentelemetry.io/g/calendar-semconv) | [Josh Suereth](https://github.com/jsuereth) | [Pablo Baeyens](https://github.com/mx-psi) | 

sigs.yml

@@ -34,28 +34,6 @@
       github: jpkrohling
     roadmapProjectIDs:
       - 133
-  - name: 'Specification: Configuration'
-    meeting: Every other Monday at 08:00 PT
-    notes:
-      type: gDoc
-      value: 1uNgWQLQZcSVfBLRXfW9XCVJmKa5NH9R15fSOXhmpGWw
-    chat:
-      - type: slack
-        name: '#otel-config-file'
-        id: C0476L7UJT1
-    invites: calendar-spec-config
-    sponsors:
-    - name: Carlos Alberto
-      github: carlosalberto
-    - name: Jack Berg
-      github: jack-berg
-    gcLiaison:
-    - name: Marylia Gutierrez
-      github: maryliag
-    repositories:
-      - https://github.com/open-telemetry/opentelemetry-configuration
-    roadmapProjectIDs:
-        - 38
   - name: 'Specification: Logs'
     meeting: Tuesday at 10:00 PT
     notes: