Cisco 2960 switch - switchport access vlan

Hi there,
My Cisco 2960 switch (PORT 48 ) is connected to my router cisco 2911. My Cisco 2960 switch has the following line 'switchport access vlan 801 on each and every interface; like:

interface GigabitEthernet0/43
 switchport access vlan 801
 no cdp enable
!
interface GigabitEthernet0/44
 description source port
 switchport access vlan 801
 no cdp enable
!
interface GigabitEthernet0/45
 switchport access vlan 801
 no cdp enable
!
interface GigabitEthernet0/46
 switchport access vlan 801
 no cdp enable
!
interface GigabitEthernet0/47
 description SessnMntrPort48
 switchport access vlan 801
 speed 1000
 duplex full
 no cdp enable
!
interface GigabitEthernet0/48
 description source port
 switchport access vlan 801
 speed 1000
 duplex full
 no cdp enable

Do I need this line 'switchport access vlan 801' on each and every interface except port 48?   Need to understand.  Will it cause vlan loop issues? (not sure) .Help is appreciated