Extra extern c warning squash, XS macro expands to XS_EXTERNAL which under c++ expands to extern c

common/perl_eqdb.cpp

@@ -221,9 +221,6 @@ XS(XS_EQDB_escape_string)
 	XSRETURN(1);
 }
 
-#ifdef __cplusplus
-extern "C"
-#endif
 XS(boot_EQDB); /* prototype to pass -Wmissing-prototypes */
 XS(boot_EQDB)
 {

common/perl_eqdb_res.cpp

@@ -260,9 +260,6 @@ XS(XS_EQDBRes_fetch_lengths)
 	XSRETURN(1);
 }
 
-#ifdef __cplusplus
-extern "C"
-#endif
 XS(boot_EQDBRes); /* prototype to pass -Wmissing-prototypes */
 XS(boot_EQDBRes)
 {