CODECOMPOSER: May I get some clarification on the ButtonsPoll example?

Part Number: CODECOMPOSER
Other Parts Discussed in Thread: EK-TM4C1294XL

Hello,

I'm using CCS vesion 20.4.1.4_1.10.1 with the TivaWare_C_Series-2.2.0.295.  I'm trying to adapt the example ButtonsPoll example to a switch we're connecting to the EK-TM4C1294XL Launchpad.  I think I understand the codefor the most part the the following confuses me:

image.png
 
What purpose does line 123 serve?  g_ui8ButtonStates isn't used until being overwritten in the next line.  Is line 123 deadwood or am I missing something?
 
I appreciate your time and patience!