code: public NextInputs remove(Input input) {
          final Set<InputSpec> willRemove = new HashSet<>(1);
          for (InputSpec spec : mInputSpecs) {
              if (spec.input == input) {
                  willRemove.add(spec);
              }
          }
          mInputSpecs.removeAll(willRemove);
          return this;
      }
docs: 移除指定Input的校验条目
  
  @param input Input对象
  @return NextInputs