Remove "pure" and "pure_none" calling conventions

core/math/math.odin

@@ -36,7 +36,7 @@ RAD_PER_DEG :: TAU/360.0;
 DEG_PER_RAD :: 360.0/TAU;
 
 
-@(default_calling_convention="pure_none")
+@(default_calling_convention="none")
 foreign _ {
 	@(link_name="llvm.sqrt.f32")
 	sqrt_f32 :: proc(x: f32) -> f32 ---;

core/odin/ast/ast.odin

@@ -22,9 +22,7 @@ Proc_Calling_Convention :: enum i32 {
 	C_Decl,
 	Std_Call,
 	Fast_Call,
-	Pure,
 	None,
-	Pure_None,
 
 	Foreign_Block_Default = -1,
 }

core/odin/parser/parser.odin

@@ -1907,13 +1907,8 @@ string_to_calling_convention :: proc(s: string) -> ast.Proc_Calling_Convention {
 	case "fast", "fastcall":
 		return .Fast_Call;
 
-	case "pure":
-		return .Pure;
 	case "none":
 		return .None;
-	case "pure_none":
-		return .Pure_None;
-
 	}
 	return .Invalid;
 }

core/runtime/core.odin

@@ -25,13 +25,11 @@ Calling_Convention :: enum u8 {
 	Invalid     = 0,
 	Odin        = 1,
 	Contextless = 2,
-	Pure        = 3,
-	CDecl       = 4,
-	Std_Call    = 5,
-	Fast_Call   = 6,
+	CDecl       = 3,
+	Std_Call    = 4,
+	Fast_Call   = 5,
 
-	None        = 7,
-	Pure_None   = 8,
+	None        = 6,
 }
 
 Type_Info_Enum_Value :: distinct i64;