Remove deprecated value bindings.

value.c

@@ -1,5 +0,0 @@
-#include "value.h"
-
-void value_destroy(void *val) {
-	zval_dtor((zval *) val);
-}

value.go

@@ -1,53 +0,0 @@
-package php
-
-// #include "value.h"
-import "C"
-
-import (
-	"fmt"
-	"reflect"
-	"runtime"
-	"unsafe"
-)
-
-type Value struct {
-	val  unsafe.Pointer
-	kind reflect.Kind
-}
-
-func (v *Value) Int() int64 {
-	return 0
-}
-
-func (v *Value) Float() float64 {
-	return 0.0
-}
-
-func (v *Value) Bool() bool {
-	return false
-}
-
-func (v *Value) String() string {
-	return ""
-}
-
-func (v *Value) Kind() reflect.Kind {
-	var k reflect.Kind = reflect.String
-	return k
-}
-
-func NewValue(ptr unsafe.Pointer) (*Value, error) {
-	if ptr == nil {
-		return nil, fmt.Errorf("Attempted to initialize value with nil pointer")
-	}
-
-	val := &Value{
-		val: ptr,
-	}
-
-	runtime.SetFinalizer(val, func(v *Value) {
-		C.value_destroy(v.val)
-	})
-
-	return val, nil
-}

value.h

@@ -1,9 +0,0 @@
-#ifndef VALUE_H
-#define VALUE_H
-
-/* PHP includes */
-#include <zend.h>
-
-void value_destroy(void *val);
-
-#endif