diff --git a/src/core/mem/tlsf_malloc_bits.h b/src/core/mem/tlsf_malloc_bits.h
deleted file mode 100644
index 29c783d4a44..00000000000
--- a/src/core/mem/tlsf_malloc_bits.h
+++ /dev/null
@@ -1,119 +0,0 @@
-#ifndef INCLUDED_tlsfbits
-#define INCLUDED_tlsfbits
-
-#if defined(__cplusplus)
-#define tlsf_decl inline
-#else
-#define tlsf_decl static
-#endif
-
-/*
-** Architecture-specific bit manipulation routines.
-**
-** TLSF achieves O(1) cost for malloc and free operations by limiting
-** the search for a free block to a free list of guaranteed size
-** adequate to fulfill the request, combined with efficient free list
-** queries using bitmasks and architecture-specific bit-manipulation
-** routines.
-**
-** Most modern processors provide instructions to count leading zeroes
-** in a word, find the lowest and highest set bit, etc. These
-** specific implementations will be used when available, falling back
-** to a reasonably efficient generic implementation.
-**
-** NOTE: TLSF spec relies on ffs/fls returning value 0..31.
-** ffs/fls return 1-32 by default, returning 0 for error.
-*/
-
-/*
-** Detect whether or not we are building for a 32- or 64-bit (LP/LLP)
-** architecture. There is no reliable portable method at compile-time.
-*/
-#if defined (__alpha__) || defined (__ia64__) || defined (__x86_64__) \
-	|| defined (_WIN64) || defined (__LP64__) || defined (__LLP64__)
-#define TLSF_64BIT
-#endif
-
-/*
-** gcc 3.4 and above have builtin support, specialized for architecture.
-** Some compilers masquerade as gcc; patchlevel test filters them out.
-**
-** Note: clang is compatible with GCC builtins and will also define those macros
-*/
-#if defined (__GNUC__) && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) \
-	&& defined (__GNUC_PATCHLEVEL__)
-
-tlsf_decl int tlsf_ffs(unsigned int word)
-{
-	return __builtin_ffs(word) - 1;
-}
-
-tlsf_decl int tlsf_fls(unsigned int word)
-{
-	const int bit = word ? 32 - __builtin_clz(word) : 0;
-	return bit - 1;
-}
-
-#if defined (TLSF_64BIT)
-tlsf_decl int tlsf_fls_sizet(size_t size)
-{
-	const int bit = size ? 64 - __builtin_clzl(size) : 0;
-	return bit - 1;
-}
-#endif
-#else
-/* Fall back to generic implementation. */
-
-tlsf_decl int tlsf_fls_generic(unsigned int word)
-{
-	int bit = 32;
-
-	if (!word) bit -= 1;
-	if (!(word & 0xffff0000)) { word <<= 16; bit -= 16; }
-	if (!(word & 0xff000000)) { word <<= 8; bit -= 8; }
-	if (!(word & 0xf0000000)) { word <<= 4; bit -= 4; }
-	if (!(word & 0xc0000000)) { word <<= 2; bit -= 2; }
-	if (!(word & 0x80000000)) { word <<= 1; bit -= 1; }
-
-	return bit;
-}
-
-/* Implement ffs in terms of fls. */
-tlsf_decl int tlsf_ffs(unsigned int word)
-{
-	return tlsf_fls_generic(word & (~word + 1)) - 1;
-}
-
-tlsf_decl int tlsf_fls(unsigned int word)
-{
-	return tlsf_fls_generic(word) - 1;
-}
-
-#if defined (TLSF_64BIT)
-tlsf_decl int tlsf_fls_sizet(size_t size)
-{
-	int high = (int)(size >> 32);
-	int bits = 0;
-	if (high)
-	{
-		bits = 32 + tlsf_fls(high);
-	}
-	else
-	{
-		bits = tlsf_fls((int)size & 0xffffffff);
-
-	}
-	return bits;
-}
-#endif /* defined (TLSF_64BIT) */
-
-#endif /* GNUC */
-
-
-#if !defined (TLSF_64BIT)
-#define tlsf_fls_sizet tlsf_fls
-#endif
-
-#undef tlsf_decl
-
-#endif