dt-bindings: i3c: silvaco,i3c-master: drop unneeded quotes

Cleanup bindings dropping unneeded quotes. Once all these are fixed,
checking for this can be enabled in yamllint.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230609140735.64855-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/i3c/silvaco,i3c-master.yaml

@@ -10,7 +10,7 @@ maintainers:
   - Conor Culhane <conor.culhane@silvaco.com>
 
 allOf:
-  - $ref: "i3c.yaml#"
+  - $ref: i3c.yaml#
 
 properties:
   compatible: