Remove support for Metrowerks compiler

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit e016e99e37)

libk3b/plugin/libsamplerate/float_cast.h

@@ -106,42 +106,6 @@
 		return intgr ;
 	}
 
-#elif (defined (__MWERKS__) && defined (macintosh))
-
-	/* This MacOS 9 solution was provided by Stephane Letz */
-
-	#undef   HAVE_LRINT_REPLACEMENT
-	#define  HAVE_LRINT_REPLACEMENT 1
-	#include   <math.h>
-
-	#undef	lrint
-	#undef	lrintf
-
-	#define	lrint   double2int
-	#define	lrintf  float2int
-
-	inline int
-	float2int (float in)
-	{	long res [2] ;
-
-		asm
-		{	fctiw	in,in
-		  	stfd	 in,res
-	  	}
-		return res [1] ;
-	} /* float2int */
-
-	inline int
-	double2int (double in)
-	{	long res [2] ;
-
-		asm
-		{	fctiw	in,in
-			stfd	 in,res
-	  	}
-		return res [1] ;
-	} /* double2int */
-
 #elif (defined (__MACH__) && defined (__APPLE__))
 
 	/* For Apple MacOSX. */