fix(bindings): remove import "C" from Go test file (#42)

Go forbids cgo (import "C") in _test.go files. The cgo bridge
already lives in gf16.go; tests only call Go wrappers (FromF32,
ToF32, etc.) so the duplicate cgo block was unnecessary.

Closes #37

Author: gHashTag

go/goldenfloat/gf16_test.go

@@ -12,12 +12,6 @@ import (
     "testing"
 )
 
-/*
-#cgo LDFLAGS: -L../../zig-out/lib -lgoldenfloat
-#cgo CFLAGS: -I../../include
-*/
-import "C"
-
 // ============================================================================
 // Test Helpers
 // ============================================================================