fix: remove oneOf

fixes #278

spec.md

@@ -191,8 +191,8 @@ Field Name | Type | Description
 <a name="method-summary"></a>summary | `string` | A short summary of what the method does.
 <a name="method-description"></a>description | `string` | A verbose explanation of the method behavior. [GitHub Flavored Markdown syntax](https://github.github.com/gfm/) MAY be used for rich text representation.
 <a name="method-externalDocs"></a>externalDocs | [External Documentation Object](#external-documentation-object) | Additional external documentation for this method.
-<a name="method-params"></a>params | [[Content Descriptor](#content-descriptor-object) \| [Reference Object](#reference-object) \| [OneOf Object](#oneof-object)] | **REQUIRED**. A list of parameters that are applicable for this method. The list MUST NOT include duplicated parameters and therefore require [name](#content-descriptor-name) to be unique. The list can use the [Reference Object](#reference-object) to link to parameters that are defined by the [Content Descriptor Object](#content-descriptor-object). It may also nest the content descriptor or reference object inside of a [OneOf Object](#oneof-object). All optional params (content descriptor objects with "required": false) MUST be positioned after all required params in the list.
-<a name="method-result"></a>result | [Content Descriptor](#content-descriptor-object) \| [Reference Object](#reference-object) \| [OneOf Object](#oneof-object) | **REQUIRED**. The description of the result returned by the method. It MUST be a Content Descriptor.
+<a name="method-params"></a>params | [[Content Descriptor](#content-descriptor-object) \| [Reference Object](#reference-object) | **REQUIRED**. A list of parameters that are applicable for this method. The list MUST NOT include duplicated parameters and therefore require [name](#content-descriptor-name) to be unique. The list can use the [Reference Object](#reference-object) to link to parameters that are defined by the [Content Descriptor Object](#content-descriptor-object). All optional params (content descriptor objects with "required": false) MUST be positioned after all required params in the list.
+<a name="method-result"></a>result | [Content Descriptor](#content-descriptor-object) \| [Reference Object](#reference-object) | **REQUIRED**. The description of the result returned by the method. It MUST be a Content Descriptor.
 <a name="method-deprecated"></a>deprecated | `boolean` | Declares this method to be deprecated. Consumers SHOULD refrain from usage of the declared method. Default value is `false`.
 <a name="method-servers"></a>servers | [[Server Object](#server-object)] | An alternative `servers` array to service this method. If an alternative `servers` array is specified at the Root level, it will be overridden by this value.
 <a name="method-errors"></a>errors | [[Error Object](#error-object) \| [Reference Object](#reference-object)] | A list of custom application defined errors that MAY be returned. The Errors MUST have unique error codes.
@@ -362,16 +362,6 @@ Field Name | Type | Description
 
 This object cannot be extended with additional properties and any properties added SHALL be ignored.
 
-## oneOf Object
-
-A simple object allowing for conditional content descriptors. It MUST only be used in place of a content descriptor. It specifies that the content descriptor in question must match one of the listed content descriptors. This allows you to define content descriptors more granularly, without having to rely so heavily on json schemas.
-
-The oneOf Object is defined by [JSON Schema](http://json-schema.org/latest/json-schema-validation.html#rfc.section.6.7.3) and follows the same structure, behavior and rules.
-
-Field Name | Type | Description
----|:---:|---
-<a name="oneof-oneof"></a>oneOf | [Content Descriptor](#content-descriptor-object) | **REQUIRED**. The reference string.
-
 ## Specification Extensions
 
 While the OpenRPC Specification tries to accommodate most use cases, additional data can be added to extend the specification at certain points.