Update requirements.txt

requirements.txt

@@ -1,7 +1,4 @@
-# packages in environment at /Users/ddiddu/anaconda3/envs/simsearch:
-#
-# Name                    Version                   Build  Channel
-nltk                      3.7                pyhd3eb1b0_0
-numpy                     1.24.3          py311h728a8a3_1
-pandas                    1.5.3           py311hc5848a5_0  
-scikit-learn              1.2.2           py311hcec6c5f_0  
+nltk
+numpy
+pandas
+scikit-learn