diff --git a/main.cpp b/main.cpp
index 8605fb8..ff5dcb8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -16,7 +16,6 @@ using json = nlohmann::json;
 // Concerning `returnErrorIfPlaylistNotFound`, it is used when not trying to retrieve a channel `uploads` playlist content as it seems to always work.
 enum getJsonBehavior { normal, retryOnCommentsDisabled, returnErrorIfPlaylistNotFound };
 
-set<string> setFromVector(vector<string> vec);
 vector<string> getFileContent(string filePath);
 json getJson(unsigned short threadId, string url, bool usingYouTubeDataApiV3, string channelId, getJsonBehavior behavior = normal);
 void createDirectory(string path),
@@ -826,12 +825,6 @@ string getDate()
     return toString.str();
 }
 
-// Returns a set from a given vector.
-set<string> setFromVector(vector<string> vec)
-{
-    return set(vec.begin(), vec.end());
-}
-
 // Return file lines as a vector of the file at the given `filePath`.
 vector<string> getFileContent(string filePath)
 {