[WASM] Enable passing tests

compiler/testData/codegen/box/bridges/covariantGenericDiamond.kt

@@ -1,8 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: BRIDGE_ISSUES
-// Before we implemented native wasm strings this passed by chance, only because we inserted unbox intrinsic at the end of
-// the BImpl::<get-result>. Need to find common source of this bridge problems.
-
 interface A {
     val result: Any
 }