Documentation improvements and small code/whitespace fixes

Corresponding to flashrom svn r535.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/nic3com.c b/nic3com.c
index 023ec35..c6341ed 100644
--- a/nic3com.c
+++ b/nic3com.c
@@ -110,10 +110,6 @@
 
 uint8_t nic3com_chip_readb(const chipaddr addr)
 {
-	uint8_t val;
-
 	OUTL((uint32_t)addr, io_base_addr + BIOS_ROM_ADDR);
-	val = INB(io_base_addr + BIOS_ROM_DATA);
-
-	return val;
+	return INB(io_base_addr + BIOS_ROM_DATA);
 }