All of the early church fathers taught the entire Law of Moses has been done away with. Here are just a few quotes:

• Ignatius - 30 to 107 AD
• Trallians 9 - Christians do not observe the Sabbath but the Lord's day and some people denied that Jesus resurrected
   
• Mathetes 130 AD
• Epistle to Diognetus 3,4 - Christians do not offer sacrifices, nor abstain from meets, nor observe the Sabbath or new moon festivals, nor become circumcised like the Jews do. 
• Epistle to Diognetus 5 - Christians follow the customs of their native lands in regard to marriage, food, clothing, and conduct. They marry and have children but they never have abortions. They obey all the laws of their country.
• Epistle to Diognetus 7 - Jesus, who is God come in the flesh, came to persuade not compel us to salvation, because violence has no part in the character of God.
• Epistle to Diognetus 11 - He (Mathetes) was taught directly by the apostles. Jesus is uncreated (from everlasting)
   
• Justin Martyr 110-165 AD
• First Apology 13 - Christians do not offer sacrifices of blood or incense but by praise. God is triune.
• First Apology 67 - Christians meet together on Sunday.
• Dialogue 10 - Christians live like all other gentiles, not observing the festivals, Sabbaths, new moon, or the rite of circumcision.
• Dialogue 11 - Christ did away with the entire law of Moses, and circumcision.
• Dialogue 15 - True fasting is giving your food to the hungry. 
• Dialogue 19 to 23 - Circumcision, food laws, and Sabbaths were for a teaching. Circumcision began with Abraham and the Sabbath and the rest began with Moses.
• Dialogue 43 - Circumcision began with Abraham. The Sabbath, sacrifices, offerings, and feasts began with Moses.
   
• Irenaeus 178 AD
• Against Heresies 3.15 - Jesus and the Father are the only true God. Jesus gave Moses the dispensation of the Law.
• Against Heresies 4.4 - The Law started with Moses and ended with John. 
• Against Heresies 4.34 - Jesus fulfilled the Law and prophets, then did away with it, and gave a new covenant.
• Against Heresies 5.8 - In the dispensation of Law the clean animals represented spiritual man and the unclean animals represented the carnal man
• Against Heresies 5.17 - "He has destroyed the handwriting" of our debt, and "fastened it to the cross;"
   
• Tertullian 190-210 AD
• Marcion 1.20 - Paul in Galatians means the Law given by god then fulfilled and done away with in Christ.
• Marcion 1.21 - Some disputed about eating idol sacrifices, others about the veiled dress of women, others again about marriage and divorce, and some even about the hope of the resurrection; but about God no one disputed.
• Marcion 4.12 - Jesus annulled the Sabbath
• Marcion 5.2 - Galatians proves the Mosaic Law is fully abolished.
• Marcion 5.11 - 1 Corinthians, the veil of Moses refers to the complete doing away with the old dispensation. Christ being messiah and abrogation of Moses Law. Heretics try to say the epistle to the Ephesians is the epistle to the Laodeceans.
• Jews 1.3 - Circumcision was temporary.
• Jews 1.4 - Sabbath was temporary
• Jews 1.5 - Sacrifices were temporary.
• Nations 1.13 - Christians worship on Sunday, this has nothing to do with paganism.
   
• Origen 230 AD
• OFP 4:1:17 - Notes goat-stags and griffins and other examples of the Law of Moses that can’t be followed.
• Against Celsus 1:22 The rite of circumcision began with Abraham and was discontinued by Jesus.
• Against Celsus 5:47 - The circumcision practiced by the Egyptians is not that same as the circumcision of the Jews. 
• Against Celsus 5:48 - Christians are forbidden to practice circumcision; he quotes Gal. 5.2 54.
   
• Victorinus 270 AD
• Creation of the world 1 - There was a literal 7 day creation, but Jesus abolished the Sabbath.
   
• Lactantius 285 AD
• Divine Institutes 4.17 - Jesus abolished circumcision; law against eating pork, and the Sabbath.  Agrees with the Epistle of Barnabas on swine’s flesh.

Note: some groups will try to say that meeting on the first day of the week is really the Havdalah service on Saturday night. But as we can see the entire Sabbath from morning services to the evening "Havdalah" service has been annulled, and no longer observed. In other words the whole Sabbath day. So the LORD's day is the first of the week or Sunday.