Amiga: drop SHAREDLIB dead build flavor

sys/amiga/winproto.h

@@ -58,9 +58,7 @@ int amikbhit(void);
 int WindowGetchar(void);
 WETYPE WindowGetevent(void);
 void amii_cleanup(void);
-#ifndef SHAREDLIB
 void Abort(long rc);
-#endif
 void CleanUp(void);
 void flush_glyph_buffer(struct Window *w);
 void amiga_print_glyph(winid window, int color_index, int glyph);
@@ -71,10 +69,8 @@ void FreeNewWindow(struct NewWindow *win);
 void bell(void);
 void amii_delay_output(void);
 void amii_number_pad(int state);
-#ifndef SHAREDLIB
 void amiv_loadlib(void);
 void amii_loadlib(void);
-#endif
 void preserve_icon(void);
 void clear_icon(void);
 
@@ -114,10 +110,6 @@ BitMapHeader ReadTileImageFiles(void);
 void FreeTileImageFiles(void);
 
 /* winami.c */
-#ifdef SHAREDLIB
-int __UserLibInit(void);
-void __UserLibCleanup(void);
-#endif
 void amii_askname(void);
 void amii_player_selection(void);
 void RandomWindow(char *name);
@@ -127,15 +119,7 @@ void amii_display_file(const char *fn, boolean complain);
 void SetBorder(struct Gadget *gd);
 /* malloc/free provided by stdlib.h */
 
-#ifdef SHAREDLIB
-/* amilib.c */
-void amii_loadlib(void);
-void amiv_loadlib(void);
-void CleanUp(void);
-void setup_librefs(WinamiBASE *base);
-#else
 void Abort(long rc);
-#endif
 
 win_request_info *amii_ctrl_nhwindow(winid, int, win_request_info *);