Removes the specified managed policy from the specified IAM group.
A group can also have inline policies embedded with it. To delete an inline policy, use the DeleteGroupPolicy API. For information about policies, see Managed Policies and Inline Policies in the IAM User Guide.
/// The request was rejected because an invalid or out-of-range value was supplied for
/// an input parameter.
///
/// The request was rejected because it attempted to create resources beyond the current
/// AWS account limits. The error message describes the limit exceeded.
///
/// The request was rejected because it referenced an entity that does not exist. The
/// error message describes the entity.
///
/// The request processing has failed because of an unknown error, exception or failure.
///
