[K/N][runtime] Do not export ImmutableBlob type info

It's not used by the native runtime

kotlin-native/runtime/src/main/kotlin/kotlin/native/Blob.kt

@@ -10,7 +10,6 @@ import kotlinx.cinterop.*
 /**
  * An immutable compile-time array of bytes.
  */
-@ExportTypeInfo("theImmutableBlobTypeInfo")
 public final class ImmutableBlob private constructor() {
     public val size: Int
         get() = getArrayLength()