maint: Remove "Created:" lines from code base. * lin2mu.m, mu2lin.m, bincoeff.m, common_size.m, deal.m, nextpow2.m, postpad.m, prepad.m, repmat.m, shift.m, xor.m, inpolygon.m, rotx.m, roty.m, rotz.m, getappdata.m, isappdata.m, rmappdata.m, setappdata.m, colormap.m, gray.m, gray2ind.m, image.m, imagesc.m, ind2gray.m, ind2rgb.m, ocean.m, rgb2ind.m, javachk.m, javamem.m, commutation_matrix.m, cross.m, duplication_matrix.m, gls.m, housh.m, isdefinite.m, ishermitian.m, issymmetric.m, null.m, ols.m, orth.m, qzhess.m, vech.m, __w2mpth__.m, expand_rel_paths.m, make_rel_paths.m, daspect.m, pbaspect.m, rticks.m, thetaticks.m, xticklabels.m, xticks.m, yticklabels.m, yticks.m, zticklabels.m, zticks.m, comet.m, errorbar.m, loglogerr.m, __errplot__.m, semilogxerr.m, semilogyerr.m, cla.m, copyobj.m, hdl2struct.m, linkaxes.m, __ghostscript__.m, __gnuplot_get_var__.m, __gnuplot_has_feature__.m, __gnuplot_has_terminal__.m, __gnuplot_open_stream__.m, struct2hdl.m, compan.m, conv.m, deconv.m, mpoles.m, poly.m, polyder.m, polyfit.m, polyint.m, polyout.m, polyreduce.m, polyval.m, polyvalm.m, residue.m, roots.m, __parse_movargs__.m, detrend.m, fftconv.m, fftfilt.m, fftshift.m, ifftshift.m, movfun.m, movslice.m, beta.m, betaln.m, lcm.m, pow2.m, corr.m, kurtosis.m, skewness.m, untabify.m, calendar.m, datestr.m, datevec.m, eomday.m, now.m, weekday.m: Remove "Created:" lines from code base.

--- a/scripts/general/xor.m	Tue Jan 21 14:57:31 2020 -0600
+++ b/scripts/general/xor.m	Tue Jan 21 13:06:02 2020 -0800
@@ -55,7 +55,6 @@
 ## @end deftypefn
 
 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>
-## Created: 16 September 1994
 ## Adapted-By: jwe
 
 function z = xor (x, y, varargin)