libbinder: remove forward declaration of Value

Since it no longer exists.

Bug: N/A
Test: N/A
Change-Id: I0bda42994b9c9f10bcdadb461766b5180db5e768
diff --git a/libs/binder/IpPrefix.cpp b/libs/binder/IpPrefix.cpp
index 3a8a63c..8d62266 100644
--- a/libs/binder/IpPrefix.cpp
+++ b/libs/binder/IpPrefix.cpp
@@ -30,7 +30,6 @@
 using android::Parcel;
 using android::status_t;
 using android::UNEXPECTED_NULL;
-using namespace ::android::binder;
 
 namespace android {
 
diff --git a/libs/binder/include/binder/Parcel.h b/libs/binder/include/binder/Parcel.h
index c8f82a3..c369f9e 100644
--- a/libs/binder/include/binder/Parcel.h
+++ b/libs/binder/include/binder/Parcel.h
@@ -45,10 +45,6 @@
 class String8;
 class TextOutput;
 
-namespace binder {
-class Value;
-};
-
 class Parcel {
     friend class IPCThreadState;
 public: