remove non-relevant test case

Author: MaxGraey

tests/compiler/literals-hexfloat.debug.wat

@@ -116,11 +116,6 @@
   f64.const -0.0625
   f64.eq
   drop
-  i32.const -1
-  f64.convert_i32_s
-  f64.const -1
-  f64.eq
-  drop
   f64.const -0.5
   f64.const -0.5
   f64.eq

tests/compiler/literals-hexfloat.ts

@@ -27,7 +27,6 @@ assert(-0x0.0p2 == -0.0 && Math.signbit(-0x0.0p2));
 assert(-0x0.1p4 == -1.0);
 assert(-0x1.1 == -1.0625);
 assert(-0x0.1 == -0.0625);
-assert(-0x1 == -1.0);
 assert(-0x1p-1 == -0.5);
 assert(-0x1p1 == -2.0);
 assert(-0x1p+8 == -256);