Drop references to $haikuVersion.

* Referring the current haiku version explicitly is not needed, since
  the RequiresUpdater takes care of setting the version of Haiku used
  for building a package.

media-gfx/tuxpaint/tuxpaint-0.9.22.recipe

@@ -22,7 +22,7 @@ PROVIDES="
 	"
 
 REQUIRES="
-	haiku >= $haikuVersion
+	haiku
 	lib:libfribidi
 	lib:libiconv
 	lib:libintl
@@ -36,7 +36,7 @@ REQUIRES="
 	"
 
 BUILD_REQUIRES="
-	haiku_devel  >= $haikuVersion
+	haiku_devel
 	devel:libfribidi
 	devel:libiconv
 	devel:libintl