remove git executors

Author: Vladimir Kotal

opengrok-indexer/src/main/java/org/opengrok/indexer/history/GitRepository.java

@@ -164,79 +164,6 @@ private static boolean isGitWorking() {
         return false;
     }
 
-    /**
-     * Get an executor to be used for retrieving the history log for the named
-     * file.
-     *
-     * @param file The file to retrieve history for
-     * @param sinceRevision the oldest changeset to return from the executor, or
-     *                      {@code null} if all changesets should be returned
-     * @return An Executor ready to be started
-     */
-    Executor getHistoryLogExecutor(final File file, String sinceRevision)
-            throws IOException {
-
-        String filename = getRepoRelativePath(file);
-
-        List<String> cmd = new ArrayList<>();
-        ensureCommand(CMD_PROPERTY_KEY, CMD_FALLBACK);
-        cmd.add(RepoCommand);
-        cmd.add("log");
-        cmd.add("--abbrev-commit");
-        cmd.add(ABBREV_LOG);
-        cmd.add("--name-only");
-        cmd.add("--pretty=fuller");
-        cmd.add(GIT_DATE_OPT);
-        if (isMergeCommitsEnabled()) {
-            cmd.add("-m");
-        }
-
-        if (file.isFile() && isHandleRenamedFiles()) {
-            cmd.add("--follow");
-        }
-
-        if (sinceRevision != null) {
-            cmd.add(sinceRevision + "..");
-        }
-
-        if (filename.length() > 0) {
-            cmd.add("--");
-            cmd.add(filename);
-        }
-
-        return new Executor(cmd, new File(getDirectoryName()), sinceRevision != null);
-    }
-
-    Executor getRenamedFilesExecutor(final File file, String sinceRevision) throws IOException {
-        ensureCommand(CMD_PROPERTY_KEY, CMD_FALLBACK);
-        List<String> cmd = new ArrayList<>();
-        cmd.add(RepoCommand);
-        cmd.add("log");
-        cmd.add("--find-renames=8"); // similarity 80%
-        cmd.add("--diff-filter=R");
-        cmd.add("--summary");
-        cmd.add(ABBREV_LOG);
-        cmd.add("--name-status");
-        cmd.add("--oneline");
-
-        if (file.isFile()) {
-            cmd.add("--follow");
-        }
-
-        if (sinceRevision != null) {
-            cmd.add(sinceRevision + "..");
-        }
-
-        String canonicalPath = file.getCanonicalPath();
-        if (canonicalPath.length() > getCanonicalDirectoryName().length() + 1) {
-            // this is a file in the repository
-            cmd.add("--");
-            cmd.add(getPathRelativeToCanonicalRepositoryRoot(canonicalPath));
-        }
-
-        return new Executor(cmd, new File(getDirectoryName()), sinceRevision != null);
-    }
-
     /**
      * Be careful, git uses only forward slashes in its command and output (not in file path).
      * Using backslashes together with git show will get empty output and 0 status code.