Revert "metrics have been added"

This reverts commit 16e792be75335b09a4f9f254e3972030af83b1ad, reversing
changes made to 3790f3d771d1a65ed6c0d05f3e0d79ff13308142.

1 files changed, 0 insertions, 74 deletions

diff --git a/library/cpp/string_utils/secret_string/secret_string.h b/library/cpp/string_utils/secret_string/secret_string.h
deleted file mode 100644
index fdb9f6a85ce..00000000000
--- a/library/cpp/string_utils/secret_string/secret_string.h
+++ /dev/null
@@ -1,74 +0,0 @@
-#pragma once
-
-#include <library/cpp/string_utils/ztstrbuf/ztstrbuf.h>
-
-#include <util/generic/string.h>
-
-namespace NSecretString {
-    /**
-     * TSecretString allowes to store some long lived secrets in "secure" storage in memory.
-     * Common usage:
-     *  1) read secret value from disk/env/etc
-     *  2) put it into TSecretString
-     *  3) destory secret copy from 1)
-     *
-     * Useful scenerios for TSecretString:
-     *   - in memory only tasks: using key to create crypto signature;
-     *   - rare network cases: db password on connection or OAuth token in background tasks.
-     *     These cases disclosure the secret
-     *       because of sending it over network with some I/O frameworks.
-     *     Usually such frameworks copy input params to provide network protocol: gRPC, for example.
-     *
-     * Supported features:
-     *  1. Exclude secret from core dump.
-     *     madvise(MADV_DONTDUMP) in ctor excludes full memory page from core dump.
-     *     madvise(MADV_DODUMP) in dtor reverts previous action.
-     *  2. Zero memory before free.
-     *
-     * Code dump looks like this:
-(gdb) print s
-$1 = (const TSecretString &) @0x7fff23c4c560: {
-  Value_ = {<TStringBase<TBasicString<char, std::__y1::char_traits<char> >, char, std::__y1::char_traits<char> >> = {
-      static npos = <optimized out>}, Data_ = 0x107c001d8 <error: Cannot access memory at address 0x107c001d8>}}
-     */
-
-    class TSecretString {
-    public:
-        TSecretString() = default;
-        TSecretString(TStringBuf value);
-        ~TSecretString();
-
-        TSecretString(const TSecretString& o)
-            : TSecretString(o.Value())
-        {
-        }
-
-        TSecretString(TSecretString&& o)
-            : TSecretString(o.Value())
-        {
-            o.Clear();
-        }
-
-        TSecretString& operator=(const TSecretString& o);
-        TSecretString& operator=(TSecretString&& o);
-
-        TSecretString& operator=(const TStringBuf o);
-
-        operator TZtStringBuf() const {
-            return Value();
-        }
-
-        // Provides zero terminated string
-        TZtStringBuf Value() const {
-            return TZtStringBuf(Value_);
-        }
-
-    private:
-        // TStringBuf breaks Copy-On-Write to provide correct copy-ctor and copy-assignment
-        void Init(TStringBuf value);
-        void Clear();
-
-    private:
-        TString Value_;
-    };
-}