remove outdated restrictions.

Author: BillWagner

docs/csharp/programming-guide/classes-and-structs/access-modifiers.md

@@ -65,7 +65,7 @@ Normally, the accessibility of a member isn't greater than the accessibility of
 
 The type of any member field, property, or event must be at least as accessible as the member itself. Similarly, the return type and the parameter types of any method, indexer, or delegate must be at least as accessible as the member itself. For example, you can't have a `public` method `M` that returns a class `C` unless `C` is also `public`. Likewise, you can't have a `protected` property of type `A` if `A` is declared as `private`.
 
-User-defined operators must always be declared as `public` and `static`. For more information, see [Operator overloading](../../language-reference/operators/operator-overloading.md).
+User-defined operators must always be declared as `public`. For more information, see [Operator overloading](../../language-reference/operators/operator-overloading.md).
 
 To set the access level for a `class` or `struct` member, add the appropriate keyword to the member declaration, as shown in the following example.
 

docs/csharp/programming-guide/classes-and-structs/members.md

@@ -20,7 +20,7 @@ Classes and structs have members that represent their data and behavior. A class
 |[Properties](./properties.md)|Properties are methods on a class that are accessed as if they were fields on that class. A property can provide protection for a class field to keep it from being changed without the knowledge of the object.|  
 |[Methods](./methods.md)|Methods define the actions that a class can perform. Methods can take parameters that provide input data, and can return output data through parameters. Methods can also return a value directly, without using a parameter.|  
 |[Events](../events/index.md)|Events provide notifications about occurrences, such as button clicks or the successful completion of a method, to other objects. Events are defined and triggered by using delegates.|  
-|[Operators](../../language-reference/operators/index.md)|Overloaded operators are considered type members. When you overload an operator, you define it as a public static method in a type. For more information, see [Operator overloading](../../language-reference/operators/operator-overloading.md).|  
+|[Operators](../../language-reference/operators/index.md)|Overloaded operators are considered type members. When you overload an operator, you define it as a public method in a type. For more information, see [Operator overloading](../../language-reference/operators/operator-overloading.md).|  
 |[Indexers](../indexers/index.md)|Indexers enable an object to be indexed in a manner similar to arrays.|  
 |[Constructors](./constructors.md)|Constructors are methods that are called when the object is first created. They are often used to initialize the data of an object.|  
 |[Finalizers](./finalizers.md)|Finalizers are used very rarely in C#. They are methods that are called by the runtime execution engine when the object is about to be removed from memory. They are generally used to make sure that any resources which must be released are handled appropriately.|