Revert "YT-19324: move YT provider to ydb/library/yql"

This reverts commit ca272f12fdd0e8d5c3e957fc87939148f1caaf72, reversing
changes made to 49f8acfc8b0b5c0071b804423bcf53fda26c7c12.

1 files changed, 0 insertions, 80 deletions

diff --git a/library/cpp/erasure/helpers.cpp b/library/cpp/erasure/helpers.cpp
deleted file mode 100644
index 74edeca52c..0000000000
--- a/library/cpp/erasure/helpers.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-#include "helpers.h"
-
-#include <algorithm>
-#include <iterator>
-
-namespace NErasure {
-
-TPartIndexList MakeSegment(int begin, int end) {
-    TPartIndexList result(end - begin);
-    for (int i = begin; i < end; ++i) {
-        result[i - begin] = i;
-    }
-    return result;
-}
-
-TPartIndexList MakeSingleton(int elem) {
-    TPartIndexList result;
-    result.push_back(elem);
-    return result;
-}
-
-TPartIndexList Difference(int begin, int end, const TPartIndexList& subtrahend) {
-    size_t pos = 0;
-    TPartIndexList result;
-    for (int i = begin; i < end; ++i) {
-        while (pos < subtrahend.size() && subtrahend[pos] < i) {
-            pos += 1;
-        }
-        if (pos == subtrahend.size() || subtrahend[pos] != i) {
-            result.push_back(i);
-        }
-    }
-    return result;
-}
-
-TPartIndexList Difference(const TPartIndexList& first, const TPartIndexList& second) {
-    TPartIndexList result;
-    std::set_difference(first.begin(), first.end(), second.begin(), second.end(), std::back_inserter(result));
-    return result;
-}
-
-TPartIndexList Difference(const TPartIndexList& set, int subtrahend) {
-    return Difference(set, MakeSingleton(subtrahend));
-}
-
-TPartIndexList Intersection(const TPartIndexList& first, const TPartIndexList& second) {
-    TPartIndexList result;
-    std::set_intersection(first.begin(), first.end(), second.begin(), second.end(), std::back_inserter(result));
-    return result;
-}
-
-TPartIndexList Union(const TPartIndexList& first, const TPartIndexList& second) {
-    TPartIndexList result;
-    std::set_union(first.begin(), first.end(), second.begin(), second.end(), std::back_inserter(result));
-    return result;
-}
-
-bool Contains(const TPartIndexList& set, int elem) {
-    return std::binary_search(set.begin(), set.end(), elem);
-}
-
-TPartIndexList UniqueSortedIndices(const TPartIndexList& indices) {
-    TPartIndexList copy = indices;
-    std::sort(copy.begin(), copy.end());
-    copy.erase(std::unique(copy.begin(), copy.end()), copy.end());
-    return copy;
-}
-
-TPartIndexList ExtractRows(const TPartIndexList& matrix, int width, const TPartIndexList& rows) {
-    Y_ASSERT(matrix.size() % width == 0);
-    TPartIndexList result(width * rows.size());
-    for (size_t i = 0; i < rows.size(); ++i) {
-        auto start = matrix.begin() + rows[i] * width;
-        std::copy(start, start + width, result.begin() + i * width);
-    }
-    return result;
-}
-
-} // namespace NErasure
-