Require scikit-learn instead of sklearn package

Fixes project-codeflare#48

Author: sroecker

requirements.txt

@@ -1,9 +1,8 @@
 ray~=1.3.0
 setuptools~=52.0.0
-sklearn~=0.0
 scikit-learn~=0.24.1
 pandas~=1.2.4
 pytest~=6.2.4
 numpy~=1.18.5
 pickle5~=0.0.11
-graphviz~=0.16
+graphviz~=0.16

setup.py

@@ -41,7 +41,6 @@
     install_requires=[
         'ray[default,serve,k8s]>=1.3.0',
         'setuptools>=52.0.0',
-        'sklearn>=0.0',
         'scikit-learn>=0.24.1',
         'pandas>=1.2.4',
         'numpy>=1.18.5',
@@ -69,4 +68,4 @@
         'Bug Reports': 'https://github.com/project-codeflare/codeflare/issues',
         'Source': 'https://github.com/project-codeflare/codeflare',
     },
-)
+)