Is there any way to delete contact from contact list?

To add contact (where're name = 'Mozart', number = '+380505005050')

$ adb shell am start -a android.intent.action.INSERT -t vnd.android.cursor.dir/contact -e name Vasya -e phone +380505005050

To edit contact (where's id = 1)

$ adb shell am start -a android.intent.action.EDIT content://com.android.contacts/contacts/1

To remove contact (where's id = 1)

$ adb shell content delete --uri content://com.android.contacts/contacts/1

To remove all contacts at once

$ adb shell pm clear com.android.providers.contacts

To view specific contact (where's id = 1)

$ adb shell am start -a android.intent.action.VIEW content://com.android.contacts/contacts/1

To list all contacts

$ adb shell content query --uri content://com.android.contacts/contacts

adb shell pm clear com.android.providers.contacts command will clear all contacts from a contact list.