Fix issue 2 - remove qualifier in class def.

Author: nseidle

examples/Example1_BasicReadings/Example1_BasicReadings.ino

@@ -6,7 +6,7 @@
   License: This code is public domain but you buy me a beer if you use this and we meet someday (Beerware license).
 
   SGP30 Datasheet: https://cdn.sparkfun.com/assets/c/0/a/2/e/Sensirion_Gas_Sensors_SGP30_Datasheet.pdf
-  
+
   Feel like supporting our work? Buy a board from SparkFun!
   https://www.sparkfun.com/products/14813
 

src/SparkFun_SGP30_Arduino_Library.h

@@ -141,7 +141,7 @@ class SGP30
     const byte _SGP30Address = 0x58;
 
     //Generates CRC8 for SGP30 from lookup table
-    uint8_t SGP30::_CRC8(uint16_t twoBytes);
+    uint8_t _CRC8(uint16_t twoBytes);
 
 #ifdef SGP30_LOOKUP_TABLE
     //lookup table for CRC8  http://www.sunshine2k.de/coding/javascript/crc/crc_js.html