Use sounds mod for "hiss" & delete sounds from unknown source

changelog.txt

@@ -1,4 +1,9 @@
 
+next
+----
+- uses "sounds" mod
+
+
 v1.1
 ----
 - added sound when hit
@@ -7,6 +12,7 @@ v1.1
 - added setting to customize spawn nodes
 - added simple_protection support
 
+
 v1.0
 ----
 - forked & renamed from Rui's original "creeper" mod

entity.lua

@@ -196,8 +196,8 @@ end
 
 local function expand(self)
 	if self.expanding and self.visualx < 2 then
-		if self.hiss == false then
-			core.sound_play("sneeker_hiss", {object=self.object, gain=1.5, max_hear_distance=2*64})
+		if self.hiss == false and sounds then
+			sounds.fuse:play(1, {object=self.object, gain=1.5, max_hear_distance=2*64})
 		end
 		self.visualx = self.visualx+0.05
 		self.object:set_properties({