fix: simplify declarations

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

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/rotr90/docs/types/index.d.ts

@@ -20,7 +20,7 @@
 
 /// <reference types="@stdlib/types"/>
 
-import { ndarray, typedndarray, genericndarray } from '@stdlib/types/ndarray';
+import { typedndarray } from '@stdlib/types/ndarray';
 
 /**
 * Rotates a matrix (or a stack of matrices) 90 degrees clockwise.
@@ -39,49 +39,7 @@ import { ndarray, typedndarray, genericndarray } from '@stdlib/types/ndarray';
 * var y = rotr90( x, 1, false );
 * // returns <ndarray>[ [ 3, 1 ], [ 4, 2 ] ]
 */
-declare function rotr90<T extends typedndarray<unknown> = typedndarray<unknown>>( x: T, k: number, writable: boolean ): T;
-
-/**
-* Rotates a matrix (or a stack of matrices) 90 degrees clockwise.
-*
-* @param x - input array
-* @param k - number of times to rotate by 90 degrees
-* @param writable - boolean indicating whether the returned ndarray should be writable
-* @returns ndarray view
-*
-* @example
-* var array = require( '@stdlib/ndarray/array' );
-*
-* var x = array( [ [ 1, 2 ], [ 3, 4 ] ], {
-*     'dtype': 'generic'
-* });
-* // returns <ndarray>[ [ 1, 2 ], [ 3, 4 ] ]
-*
-* var y = rotr90( x, 1, false );
-* // returns <ndarray>[ [ 3, 1 ], [ 4, 2 ] ]
-*/
-declare function rotr90<T extends genericndarray<unknown> = genericndarray<unknown>>( x: T, k: number, writable: boolean ): T;
-
-/**
-* Rotates a matrix (or a stack of matrices) 90 degrees clockwise.
-*
-* @param x - input array
-* @param k - number of times to rotate by 90 degrees
-* @param writable - boolean indicating whether the returned ndarray should be writable
-* @returns ndarray view
-*
-* @example
-* var array = require( '@stdlib/ndarray/array' );
-*
-* var x = array( [ [ 1, 2 ], [ 3, 4 ] ], {
-*     'dtype': 'generic'
-* });
-* // returns <ndarray>[ [ 1, 2 ], [ 3, 4 ] ]
-*
-* var y = rotr90( x, 1, false );
-* // returns <ndarray>[ [ 3, 1 ], [ 4, 2 ] ]
-*/
-declare function rotr90( x: ndarray, k: number, writable: boolean ): ndarray;
+declare function rotr90<T = unknown, U extends typedndarray<T> = typedndarray<T>>( x: U, k: number, writable: boolean ): U;
 
 
 // EXPORTS //