Remove last references to zavolaj

Closes #828

Author: moritz

doc/Language/nativecall.pod6

@@ -575,7 +575,15 @@ Prepare your system along these lines before trying out the examples:
 
 =head2 Microsoft Windows
 
-The win32-api-call.p6 script shows an example Windows API call done from Perl 6.
-See L<https://github.com/jnthn/zavolaj/tree/master/examples>
+Here is an example of a Windows API call:
+
+    use NativeCall;
+
+    sub MessageBoxA(int32, Str, Str, int32)
+        returns int32
+        is native('user32')
+        { * }
+    
+    MessageBoxA(0, "We have NativeCall", "oh lol", 64);
 
 =end pod

xt/words.pws

@@ -1241,6 +1241,5 @@ yoleaux
 yolo
 yot
 yyyy
-zavolaj
 zef
 zwj