No, he is still on the Calendar of Saints.
In 1969 Valentine and a number of other saints were removed from the Calendar of Saints. He is still considered a saint, however.
I cannot find a complete list of those saints removed from the Calendar of Saints. Actually, they have not been 'decanonized' but were removed from the Calendar because there is very little believable information abut them. Their lives are so mythical that they may have not even existed in the first place. In most cases continued veneration is still allowed unless their cult has been supressed. There were about 40 saints removed from the calendar. Here are some of those saints: Saint Christopher Saint Valentine of Rome Saint Ursula Saint Barbara Saint Philomena
I do not have a complete list of those removed from the Calendar of Saints or the Roman Martyrology but here are a few examples.These saints probably existed but there is too little information to verify the story of their lives. They have been removed from the Calendar of Saints but their cults are still allowed but not celebrated by the Universal Church:St. ChristopherSt. Valentine of RomeSt. UrsulaThese saints have been removed from both the Calendar as well as the Martyrology and their cults have been universally suppressed. The information about their lives has been proven as false or is based nearly entirely on legend and myth:St. OliviaSt. DorothySt. Barbara of NicomediaSaint Acacius the MartyrPope Pius ISaint JovitaSaint FaustinusPope ZephyrinusIn addition there are a number of saints who became recognized locally in the ancient church but not universally. Their cults are allowed only on a local basis:St. PhilomenaSt. Barbara of CagliariSt. LuciferSt. ImbeniaSt. Catherine of Alexandria was removed from the Calendar of saints and her cult supressed in 1969 but was reinstated in 2002 by Pope John Paul II
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In the 70's...Has since been removed from the list.
Which item from our list has been removed?
There are thousands and thousands of male saints and it would be impossible to list them all here. I will give a few examples:MatthewMarkLukeJohnPeterFrancisDominicAnthonyAndrewJudeSimonetc.
Click on this link for a fairly comprehensive list of patron saints.
Yes, they are automatically removed.
For a list of saints and their patronages see the Patron Saints Index.
Click on the link below to the Patron Saint Index for a list of many of the saints.
There are well over 10,000 named saints and impossible to list here. For a list on many of these saints click on this link.