Removes legend border frame.

plot_stacked_bandwidth.py

@@ -80,7 +80,7 @@ if __name__ == "__main__":
     ax.xaxis.grid(False)
 
 
-    L = plt.legend()
+    L = plt.legend(frameon=False)
     L.get_texts()[0].set_text("5G main")
     L.get_texts()[1].set_text("4G main")
     L.get_texts()[2].set_text("4G SCC 1")