[EEPROM] Fix warnings

type qualifiers ignored on function return type [-Wignored-qualifiers]

Signed-off-by: Frederic.Pillon <[email protected]>

Author: fpistm

libraries/EEPROM/src/EEPROM.h

@@ -38,7 +38,7 @@ struct EERef{
 
     //Access/read members.
     uint8_t operator*() const            { return eeprom_read_byte( /*(uint8_t*)*/ index ); }
-    operator const uint8_t() const       { return **this; }
+    operator uint8_t() const             { return **this; }
 
     //Assignment/write members.
     EERef &operator=( const EERef &ref ) { return *this = *ref; }
@@ -87,7 +87,7 @@ struct EEPtr{
     EEPtr( const int index )
         : index( index )                {}
 
-    operator const int() const          { return index; }
+    operator int() const                { return index; }
     EEPtr &operator=( int in )          { return index = in, *this; }
 
     //Iterator functionality.