Plotting Issue? Conversion of one type of plot to other?

There is one plot like this

want to convert like

in second plot there is no x axis values and continuous y axis line, How can I improve code for plot to convert to second one? For result point of view I have edited second one in paint.

x=[];
y1=[];
yy1=[];
figure; 
subplot(2,1,1);
hold on;
plot(x,y1, 'r');
plot(x,y2, 'g');
hold off;
subplot(2,1,2);
hold on;
plot(x,yy1, 'r');
plot(x,yy2, 'g');
hold off;

Answer 1

[Dishant Arora]

set(gca, 'xcolor' ,[1 1 1] ,'xtick' ,[])

x - axis is still there, but it just makes it invisible by setting axis color to white.