MIPS: pci-rt3883: trivial: remove unused variable

Fixes the following compiler warning:
  warning: unused variable 'flags' [-Wunused-variable]

Fixes: e5067c71 ("MIPS: pci-rt3883: Remove odd locking in PCI config space access code")
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: trivial@kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/pci/pci-rt3883.c

@@ -100,7 +100,6 @@ static u32 rt3883_pci_read_cfg32(struct rt3883_pci_controller *rpc,
 			       unsigned bus, unsigned slot,
 			       unsigned func, unsigned reg)
 {
-	unsigned long flags;
 	u32 address;
 	u32 ret;
 
@@ -116,7 +115,6 @@ static void rt3883_pci_write_cfg32(struct rt3883_pci_controller *rpc,
 				 unsigned bus, unsigned slot,
 				 unsigned func, unsigned reg, u32 val)
 {
-	unsigned long flags;
 	u32 address;
 
 	address = rt3883_pci_get_cfgaddr(bus, slot, func, reg);
@@ -229,7 +227,6 @@ static int rt3883_pci_config_read(struct pci_bus *bus, unsigned int devfn,
 				  int where, int size, u32 *val)
 {
 	struct rt3883_pci_controller *rpc;
-	unsigned long flags;
 	u32 address;
 	u32 data;
 
@@ -263,7 +260,6 @@ static int rt3883_pci_config_write(struct pci_bus *bus, unsigned int devfn,
 				   int where, int size, u32 val)
 {
 	struct rt3883_pci_controller *rpc;
-	unsigned long flags;
 	u32 address;
 	u32 data;