Dispose of unecessary patches.

lib/libv8/fpic-on-freebsd-amd64.patch

@@ -1,16 +0,0 @@
-diff --git a/SConstruct b/SConstruct
-index 4a7e182..b462335 100644
---- a/SConstruct
-+++ b/SConstruct
-@@ -124,6 +124,10 @@ LIBRARY_FLAGS = {
-       'LIBPATH' : ['/usr/local/lib'],
-       'CCFLAGS':      ['-ansi'],
--      'LIBS': ['execinfo']
-+      'LIBS': ['execinfo'],
-+      'arch:x64': {
-+        'CCFLAGS':      ['-fPIC'],
-+        'CXXFLAGS':     ['-fPIC']
-+      },
-     },
-     'os:openbsd': {
-       'CPPPATH' : ['/usr/local/include'],

patches/src_platform-freebsd.cc.patch

@@ -1,10 +0,0 @@
---- src/platform-freebsd.cc.orig	2012-05-12 16:47:50.556202492 +0100
-+++ src/platform-freebsd.cc	2012-05-12 16:37:59.924934272 +0100
-@@ -554,6 +554,7 @@
-     ASSERT(result == 0);
-     result = pthread_mutex_init(&mutex_, &attrs);
-     ASSERT(result == 0);
-+    USE(result);
-   }
- 
-   virtual ~FreeBSDMutex() { pthread_mutex_destroy(&mutex_); }