Remove MRB_NO_FLOAT_INLINE and MRB_WBOX_FLOAT_INLINE configuration.

They are not used from the beginning.

include/mrbconf.h

@@ -45,13 +45,6 @@
 #error Cannot define MRB_USE_FLOAT32 and MRB_NO_FLOAT at the same time
 #endif
 
-/* stop inlining floating point numbers in mrb_value (effective only with MRB_WORD_BOXING)*/
-/* floating numbers are rounded to fit in 30 bits (float) and 62 bits respectively, */
-/* by inlining. If you need full precision of floating numbers on the platform, */
-/* you have to define this option. when mrb_int is 32bit and mrb_float is double, */
-/* this option is set automatically. */
-// #define MRB_NO_FLOAT_INLINE
-
 /* add -DMRB_NO_METHOD_CACHE to disable method cache to save memory */
 //#define MRB_NO_METHOD_CACHE
 /* size of the method cache (need to be the power of 2) */
@@ -81,9 +74,6 @@
 /* represent mrb_value as a word (natural unit of data for the processor) */
 //#define MRB_WORD_BOXING
 
-/* with MRB_WORD_BOXING, embed float values in mrb_value (dropping 2 bit precision) */
-//#define MRB_WBOX_FLOAT_INLINE
-
 /* represent mrb_value as a struct; occupies 2 words */
 //#define MRB_NO_BOXING
 

include/mruby/boxing_word.h

@@ -11,7 +11,7 @@
 #error MRB_INT64 cannot be used with MRB_WORD_BOXING in 32-bit mode.
 #endif
 
-#if !defined(MRB_NO_FLOAT) || defined(MRB_NO_FLOAT_INLINE)
+#ifndef MRB_NO_FLOAT
 struct RFloat {
   MRB_OBJECT_HEADER;
   mrb_float f;
@@ -64,7 +64,6 @@ enum mrb_special_consts {
  *   undef : ...0001 0100
  *   fixnum: ...IIII III1
  *   symbol: ...SSSS SS10 (use only upper 32-bit as symbol value on 64-bit CPU)
- *   symbol: ...SSSS SS10 (use only upper 32-bit as symbol value on 64-bit CPU)
  *   object: ...PPPP P000 (any bits are 1)
  */
 typedef uintptr_t mrb_value;