dt-bindings: input: Revert "dt-bindings: input: Goodix SPI HID Touchscreen"

This reverts commit 9184b17f ("dt-bindings: input: Goodix SPI HID
Touchscreen") because it duplicates existing binding leadings to errors:

  goodix,gt7986u.example.dtb:
  touchscreen@0: compatible: 'oneOf' conditional failed, one must be fixed:
        ['goodix,gt7986u'] is too short
        'goodix,gt7375p' was expected

This was reported on mailing list on 6th of September, but no reaction
happened from contributor or maintainer to fix it.

Therefore let's drop binding which breaks and duplicates existing one.

Fixes: 9184b17f ("dt-bindings: input: Goodix SPI HID Touchscreen")
Reported-by: Rob Herring <robh@kernel.org>
Closes: https://lore.kernel.org/all/CAL_Jsq+QfTtRj_JCqXzktQ49H8VUnztVuaBjvvkg3fwEHniUHw@mail.gmail.com/Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Documentation/devicetree/bindings/input/goodix,gt7986u.yaml

-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/input/goodix,gt7986u.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: GOODIX GT7986U SPI HID Touchscreen
-
-maintainers:
-  - Charles Wang <charles.goodix@gmail.com>
-
-description: Supports the Goodix GT7986U touchscreen.
-  This touch controller reports data packaged according to the HID protocol,
-  but is incompatible with Microsoft's HID-over-SPI protocol.
-
-allOf:
-  - $ref: /schemas/spi/spi-peripheral-props.yaml#
-
-properties:
-  compatible:
-    enum:
-      - goodix,gt7986u
-
-  reg:
-    maxItems: 1
-
-  interrupts:
-    maxItems: 1
-
-  reset-gpios:
-    maxItems: 1
-
-  goodix,hid-report-addr:
-    $ref: /schemas/types.yaml#/definitions/uint32
-    description:
-      The register address for retrieving HID report data.
-      This address is related to the device firmware and may
-      change after a firmware update.
-
-  spi-max-frequency: true
-
-additionalProperties: false
-
-required:
-  - compatible
-  - reg
-  - interrupts
-  - reset-gpios
-  - goodix,hid-report-addr
-
-examples:
-  - |
-    #include <dt-bindings/interrupt-controller/irq.h>
-    #include <dt-bindings/gpio/gpio.h>
-
-    spi {
-      #address-cells = <1>;
-      #size-cells = <0>;
-
-      touchscreen@0 {
-        compatible = "goodix,gt7986u";
-        reg = <0>;
-        interrupt-parent = <&gpio>;
-        interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
-        reset-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
-        spi-max-frequency = <10000000>;
-        goodix,hid-report-addr = <0x22c8c>;
-      };
-    };
-
-...