docs: update example and remove note

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/constants/float16/sign-mask/README.md

@@ -50,10 +50,6 @@ var bool = ( FLOAT16_SIGN_MASK === 0x8000 );
 
 <section class="notes">
 
-## Notes
-
--   The higher order word of a [half-precision floating-point number][ieee754] is a 16-bit integer containing the more significant bits which include the exponent and sign.
-
 </section>
 
 <!-- /.notes -->
@@ -68,7 +64,6 @@ var bool = ( FLOAT16_SIGN_MASK === 0x8000 );
 
 ```javascript
 var toWord = require( '@stdlib/number/float16/base/to-word' );
-var fromWord = require( '@stdlib/number/float16/base/from-word' );
 var FLOAT16_SIGN_MASK = require( '@stdlib/constants/float16/sign-mask' );
 
 var x = -11.5;
@@ -82,10 +77,6 @@ var out = (w & FLOAT16_SIGN_MASK)>>>0; // 1 00000 0000000000
 // Turn off the sign bit and leave other bits unchanged:
 out = w & (~FLOAT16_SIGN_MASK); // 0 10010 0111000000
 // returns 18880
-
-// Generate a new value:
-out = fromWord( out );
-// returns 11.5
 ```
 
 </section>