ARM: dts: msm: Remove old virtio backend nodes and bindings

This removes the virtio backend device nodes compatible with
qcom,virtio_backend.

Change-Id: I548fe68edecce64df19ff9e01b0e7885e80002aa

bindings/gunyah/virtio_backend.yaml

@@ -1,52 +0,0 @@
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/gunyah/virtio_backend.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Virtio backend device for Gunyah hypervisor
-
-maintainers:
-  - Srivatsa Vaddagiri <svaddagi@qti.qualcomm.com>
-  - Sreenad Menon <sreemeno@qti.qualcomm.com>
-
-description: |+
-  Configuration properties for Virtio backend device. This device is
-  specific to virtio support found in Gunyah hypervisor. The
-  device helps a virtio backend driver in one Virtual Machine
-  establish connection with its frontend counterpart in another Virtual
-  Machine, with both VMs running on Gunyah hypervisor.
-
-properties:
-  compatible:
-    oneOf:
-      - const: qcom,virtio_backend
-
-  qcom,vm:
-    $ref: /schemas/types.yaml#/definitions/phandle
-    description:
-      Handle to node that describes common properties of a VM to which this
-      device belongs.
-
-  qcom,label:
-    $ref: '/schemas/types.yaml#/definitions/uint32'
-    description:
-      Unique label associated with the device. This label is used to identify
-      the right device which is the target of ioctl() calls.
-
-required:
-  - compatible
-  - qcom,vm
-  - qcom,label
-
-example:
-  - |
-    trustedvm: trustedvm@0 {
-	reg = <0x0 0xdff00000 0x0 100000>;
-	vm_name = "trustedvm";
-    };
-
-    virtio_backend@0 {
-	compatible = "qcom,virtio_backend";
-	qcom,vm = <&trustedvm>;
-	qcom,label = <0x10200>;
-     };

qcom/kalama.dtsi

@@ -3213,24 +3213,6 @@
 		shared-buffers = <&oem_vm_vblk0_ring &oem_vm_swiotlb>;
 	};
 
-	qcom,virtio_backend@0 {
-		compatible = "qcom,virtio_backend";
-		qcom,vm = <&trust_ui_vm>;
-		qcom,label = <0x11>;
-	};
-
-	qcom,virtio_backend@1 {
-		compatible = "qcom,virtio_backend";
-		qcom,vm = <&trust_ui_vm>;
-		qcom,label = <0x10>;
-	};
-
-	qcom,virtio_backend@2 {
-		compatible = "qcom,virtio_backend";
-		qcom,vm = <&oem_vm>;
-		qcom,label = <0x13>;
-	};
-
 	trust_ui_vm_virt_be0: trust_ui_vm_virt_be0@11 {
 		qcom,vm = <&trust_ui_vm>;
 		qcom,label = <0x11>;