Remove platform checks for UTF-8 characters in the source.

src/graphicswin.cpp

@@ -50,11 +50,7 @@ const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
 { 1, "Re&generate All",             MNU_REGEN_ALL,      ' ',     IN, mEdit },
 { 1,  NULL,                         0,                  0,       IN, NULL  },
 { 1, "Snap Selection to &Grid",     MNU_SNAP_TO_GRID,   '.',     IN, mEdit },
-#ifdef WIN32
-{ 1, "Rotate Imported &90\260",     MNU_ROTATE_90,      '9',     IN, mEdit },
-#else
 { 1, "Rotate Imported &90°",        MNU_ROTATE_90,      '9',     IN, mEdit },
-#endif
 { 1,  NULL,                         0,                  0,       IN, NULL  },
 { 1, "Cu&t",                        MNU_CUT,            C|'X',   IN, mClip },
 { 1, "&Copy",                       MNU_COPY,           C|'C',   IN, mClip },

src/solvespace.cpp

@@ -774,12 +774,7 @@ void SolveSpaceUI::MenuHelp(int id) {
 "There is NO WARRANTY, to the extent permitted by\n"
 "law. For details, visit http://gnu.org/licenses/\n"
 "\n"
-#ifdef WIN32
-"\xa9 "
-#else
-"© "
-#endif
-       "2008-2013 Jonathan Westhues and other authors.\n"
+"© 2008-2013 Jonathan Westhues and other authors.\n"
 );
             break;