Update c2_ref.js

Signed-off-by: Gunj Joshi <[email protected]>

Author: gunjjoshi

lib/node_modules/@stdlib/fft/base/fftpack/lib/c2_ref.js

@@ -66,7 +66,6 @@
 * @private
 * @param {number} a1 - Index of first dimension.
 * @param {number} a2 - Index of second dimension.
-* @param {Float64Array} c2 - Secondary intermediate array for FFT computations.
 * @param {number} idl1 - Stride related to the `l1` parameter.
 * @returns {number} - Calculated index.
 */