Remove deprecated type aliases.

Author: mbrubeck

src/lib.rs

@@ -23,16 +23,6 @@ use num_traits::Float;
 #[cfg(not(feature = "std"))]
 use num_traits::float::FloatCore as Float;
 
-/// A wrapper around Floats providing an implementation of Ord and Hash.
-///
-/// A NaN value cannot be stored in this type.
-#[deprecated(since = "0.6.0", note = "renamed to `NotNan`")]
-pub type NotNaN<T> = NotNan<T>;
-
-/// An error indicating an attempt to construct NotNan from a NaN
-#[deprecated(since = "0.6.0", note = "renamed to `FloatIsNan`")]
-pub type FloatIsNaN = FloatIsNan;
-
 // masks for the parts of the IEEE 754 float
 const SIGN_MASK: u64 = 0x8000000000000000u64;
 const EXP_MASK: u64 = 0x7ff0000000000000u64;