feat: remove 'include_private' (#2736)

* feat: remove 'include_private'

As explained in #2517 the 'include_private' flag is confusing and
doesn't work as expected. This commit therefore removes this flag.

* fix: fix tests

* docs: remove redundant private deploy note

src/fetchers/stats-fetcher.js

@@ -173,13 +173,11 @@ const totalCommitsFetcher = async (username) => {
  * Fetch stats for a given username.
  *
  * @param {string} username GitHub username.
- * @param {boolean} count_private Include private contributions.
  * @param {boolean} include_all_commits Include all commits.
  * @returns {Promise<import("./types").StatsData>} Stats data.
  */
 const fetchStats = async (
   username,
-  count_private = false,
   include_all_commits = false,
   exclude_repo = [],
 ) => {
@@ -229,12 +227,6 @@ const fetchStats = async (
     stats.totalCommits = user.contributionsCollection.totalCommitContributions;
   }
 
-  // if count_private, add private contributions to totalCommits.
-  if (count_private) {
-    stats.totalCommits +=
-      user.contributionsCollection.restrictedContributionsCount;
-  }
-
   stats.totalPRs = user.pullRequests.totalCount;
   stats.totalIssues = user.openIssues.totalCount + user.closedIssues.totalCount;
   stats.contributedTo = user.repositoriesContributedTo.totalCount;