Ignore incomplete group in the end added by pandas resample

Question

I have a csv file that is continuously updated by tickdata from a server. i want to arrange them into a 5 min resampled dataframe. i am currently using following code to resample resample_data_live = liveData['bid'].resample(timeframe, label='left').ohlc(). This is resampling fine for me. But it is adding a row in the end that is not completed 5 mins (one sample was there for the next time period in the csv). I want to skip that one or two sample to the dataframe. i have seen the question here but counting is not an option for me as the number of sample in 5 min time period is not constant.

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2021-09-28 11:44:41.952635,1736.352,1736.352
2021-09-28 11:44:43.143503,1736.363,1736.363
2021-09-28 11:44:45.243727,1736.371,1736.371
2021-09-28 11:44:46.326990,1736.354,1736.354
2021-09-28 11:44:46.667864,1736.323,1736.323
2021-09-28 11:44:47.656085,1736.325,1736.325
2021-09-28 11:44:48.446101,1736.293,1736.293
2021-09-28 11:44:48.989511,1736.263,1736.263
2021-09-28 11:44:49.225990,1736.201,1736.201
2021-09-28 11:44:49.785768,1736.171,1736.171
2021-09-28 11:44:50.826153,1736.178,1736.178
2021-09-28 11:44:51.155013,1736.208,1736.208
2021-09-28 11:44:52.486423,1736.22,1736.22
2021-09-28 11:44:53.494846,1736.195,1736.195
2021-09-28 11:44:54.639854,1736.18,1736.18
2021-09-28 11:44:54.750285,1736.211,1736.211
2021-09-28 11:44:56.159001,1736.146,1736.146
2021-09-28 11:44:57.148770,1736.132,1736.132
2021-09-28 11:44:57.654268,1736.068,1736.038
2021-09-28 11:45:00.239191,1735.962,1735.962

i am expecting to have one row here. as: ignoring that one sample in the end

2021-09-28 11:40:00,1734.141,1736.383,1733.857,1736.068