removed color bar

tikz/3d-gaussian-distribution/3d-gaussian-distribution.tex

@@ -37,14 +37,7 @@ colormap={whiteblue}{color(0cm)=(white); color(1cm)=(blue)},
     samples=60,
     xlabel=$x_1$,
     ylabel=$x_2$,
-    zlabel={$P$},
-    colorbar,
-    colorbar style={
-        at={(1.1,0)},
-        anchor=south west,
-        height=0.25*\pgfkeysvalueof{/pgfplots/parent axis height},
-        title={$P(x_1,x_2)$}
-    }
+    zlabel={$P$}
 ]
 \addplot3 [
     surf,