diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -304,7 +304,6 @@
 add_library(util
 	chainparamsbase.cpp
 	clientversion.cpp
-	compat/glibc_sanity.cpp
 	compat/glibcxx_sanity.cpp
 	compat/strnlen.cpp
 	fs.cpp
diff --git a/src/Makefile.am b/src/Makefile.am
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -532,7 +532,6 @@
   support/lockedpool.cpp \
   chainparamsbase.cpp \
   clientversion.cpp \
-  compat/glibc_sanity.cpp \
   compat/glibcxx_sanity.cpp \
   compat/strnlen.cpp \
   fs.cpp \
diff --git a/src/compat/glibc_compat.cpp b/src/compat/glibc_compat.cpp
--- a/src/compat/glibc_compat.cpp
+++ b/src/compat/glibc_compat.cpp
@@ -7,15 +7,8 @@
 #endif
 
 #include <cstdarg>
-#include <cstddef>
 #include <cstdint>
 
-// Prior to GLIBC_2.14, memcpy was aliased to memmove.
-extern "C" void *memmove(void *a, const void *b, size_t c);
-extern "C" void *memcpy(void *a, const void *b, size_t c) {
-    return memmove(a, b, c);
-}
-
 #if defined(__i386__) || defined(__arm__)
 
 extern "C" int64_t __udivmoddi4(uint64_t u, uint64_t v, uint64_t *rp);
diff --git a/src/compat/glibc_sanity.cpp b/src/compat/glibc_sanity.cpp
deleted file mode 100644
--- a/src/compat/glibc_sanity.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2009-2019 The Bitcoin Core developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#if defined(HAVE_CONFIG_H)
-#include <config/bitcoin-config.h>
-#endif
-
-#include <cstddef>
-
-extern "C" void *memcpy(void *a, const void *b, size_t c);
-void *memcpy_int(void *a, const void *b, size_t c) {
-    return memcpy(a, b, c);
-}
-
-namespace {
-// trigger: Use the memcpy_int wrapper which calls our internal memcpy.
-//   A direct call to memcpy may be optimized away by the compiler.
-// test: Fill an array with a sequence of integers. memcpy to a new empty array.
-//   Verify that the arrays are equal. Use an odd size to decrease the odds of
-//   the call being optimized away.
-template <unsigned int T> bool sanity_test_memcpy() {
-    unsigned int memcpy_test[T];
-    unsigned int memcpy_verify[T] = {};
-    for (unsigned int i = 0; i != T; ++i) {
-        memcpy_test[i] = i;
-    }
-
-    memcpy_int(memcpy_verify, memcpy_test, sizeof(memcpy_test));
-
-    for (unsigned int i = 0; i != T; ++i) {
-        if (memcpy_verify[i] != i) {
-            return false;
-        }
-    }
-    return true;
-}
-} // namespace
-
-bool glibc_sanity_test() {
-    return sanity_test_memcpy<1025>();
-}
diff --git a/src/init.cpp b/src/init.cpp
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1364,7 +1364,7 @@
         return false;
     }
 
-    if (!glibc_sanity_test() || !glibcxx_sanity_test()) {
+    if (!glibcxx_sanity_test()) {
         return false;
     }
 
diff --git a/src/test/sanity_tests.cpp b/src/test/sanity_tests.cpp
--- a/src/test/sanity_tests.cpp
+++ b/src/test/sanity_tests.cpp
@@ -13,7 +13,6 @@
 BOOST_FIXTURE_TEST_SUITE(sanity_tests, BasicTestingSetup)
 
 BOOST_AUTO_TEST_CASE(basic_sanity) {
-    BOOST_CHECK_MESSAGE(glibc_sanity_test() == true, "libc sanity test");
     BOOST_CHECK_MESSAGE(glibcxx_sanity_test() == true, "stdlib sanity test");
     BOOST_CHECK_MESSAGE(ECC_InitSanityCheck() == true, "openssl ECC test");
 }