No clipping before activation in LSTM

[bac-cab]

Here is the line of code, where activation function h is applied:

onnxruntime/onnxruntime/core/providers/cpu/rnn/uni_directional_lstm.cc

Line 581 in a5dc0f9

activation_h_.func(pC_cur, pC_prev_clipped, po, pH, hidden_size_, activation_h_.alpha, activation_h_.beta);

ONNX documentation for LSTM says that input to every activation function must be clipped if clip parameter is specified:

https://onnx.ai/onnx/operators/onnx__LSTM.html#attributes