removed extra semicolons to fix compilation with gcc -Wpedantic (patch 1701236)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@45498 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/matrix.h

@@ -94,7 +94,7 @@ public:
     // Is the matrix the identity matrix?
     // Only returns a flag, which is set whenever an operation
     // is done.
-    inline bool IsIdentity(void) const { return m_isIdentity; };
+    inline bool IsIdentity(void) const { return m_isIdentity; }
 
     // This does an actual check.
     inline bool IsIdentity1(void) const ;