WASM: Don't special case string equality, it now goes through normal .equals method

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/WasmSymbols.kt

@@ -79,8 +79,7 @@ class WasmSymbols(
         context.irBuiltIns.shortType to getInternalFunction("wasm_i32_eq"),
         context.irBuiltIns.charType to getInternalFunction("wasm_i32_eq"),
         context.irBuiltIns.intType to getInternalFunction("wasm_i32_eq"),
-        context.irBuiltIns.longType to getInternalFunction("wasm_i64_eq"),
-        context.irBuiltIns.stringType to getFunction("wasm_string_eq", builtInsPackage)
+        context.irBuiltIns.longType to getInternalFunction("wasm_i64_eq")
     )
 
     val floatEqualityFunctions = mapOf(

libraries/stdlib/wasm/builtins/kotlin/String.kt

@@ -54,8 +54,6 @@ internal fun stringLiteral(startAddr: Int, length: Int) = String(unsafeRawMemory
 
 internal fun charToString(c: Char): String = String(charArrayOf(c))
 
-internal fun wasm_string_eq(x: String, y: String): Boolean = x.equals(y)
-
 //@JsFun("(it, other) => it + String(other)")
 //private fun stringPlusImpl(it: String, other: String): String =
 //    implementedAsIntrinsic