XFA: Remove ifdefs for _FX_MANAGED_CODE_.

third_party/libjpeg/fpdfapi_jmemnobs.c

Index: third_party/libjpeg/fpdfapi_jmemnobs.c
diff --git a/third_party/libjpeg/fpdfapi_jmemnobs.c b/third_party/libjpeg/fpdfapi_jmemnobs.c
index 201c5d68828762b539531b61b09442ed00906be9..0344f6fd7387102cbc1aae77c1db20331d198f0c 100644
--- a/third_party/libjpeg/fpdfapi_jmemnobs.c
+++ b/third_party/libjpeg/fpdfapi_jmemnobs.c
@@ -25,17 +25,9 @@ extern void * malloc JPP((size_t size));
 extern void free JPP((void *ptr));
 #endif
 
-#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus)
-extern "C" {
-#endif
-
 void*	FXMEM_DefaultAlloc(int byte_size, int);
 void	FXMEM_DefaultFree(void* pointer, int);
 
-#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus)
-}
-#endif
-
 /*
  * Memory allocation and freeing are controlled by the regular library
  * routines malloc() and free().