includes: Remove unneeded extern "C" statements.

include/msidefs.h

@@ -19,10 +19,6 @@
 #ifndef __WINE_MSIDEFS_H
 #define __WINE_MSIDEFS_H
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 enum msidbUpgradeAttributes {
     msidbUpgradeAttributesMigrateFeatures = 0x0000001,
     msidbUpgradeAttributesOnlyDetect = 0x00000002,
@@ -243,8 +239,4 @@ enum msidbServiceControlEvent
 #define PID_MSISOURCE PID_WORDCOUNT
 #define PID_MSIRESTRICT PID_CHARCOUNT
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif /* __WINE_MSIDEFS_H */

include/wshisotp.h

@@ -19,9 +19,6 @@
 #ifndef _WINE_WSHISOTP_
 #define _WINE_WSHISOTP_
 
-#ifdef __cplusplus
-extern "C" {
-#endif /* defined(__cplusplus) */
 
 /*
  * constants
@@ -30,8 +27,4 @@ extern "C" {
 #define ISOPROTO_TP        ISOPROTO_TP4
 
 
-#ifdef __cplusplus
-}      /* extern "C" */
-#endif /* defined(__cplusplus) */
-
 #endif /* _WINE_WSHISOTP_ */