dt-bindings: interrupt-controller: Drop unneeded quotes

Cleanup bindings dropping unneeded quotes. Once all these are fixed,
checking for this can be enabled in yamllint.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230320233928.2920693-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml

@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/interrupt-controller/loongson,liointc.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/interrupt-controller/loongson,liointc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Loongson Local I/O Interrupt Controller
 
@@ -54,7 +54,7 @@ properties:
   '#interrupt-cells':
     const: 2
 
-  'loongson,parent_int_map':
+  loongson,parent_int_map:
     description: |
       This property points how the children interrupts will be mapped into CPU
       interrupt lines. Each cell refers to a parent interrupt line from 0 to 3
@@ -71,7 +71,7 @@ required:
   - interrupts
   - interrupt-controller
   - '#interrupt-cells'
-  - 'loongson,parent_int_map'
+  - loongson,parent_int_map
 
 
 unevaluatedProperties: false