Merge bitcoin/bitcoin#26372: build, msvc: Drop no longer required macro definitions for leveldb

393be86 build, msvc: Drop no longer required macro definitions for leveldb (Hennadii Stepanov)

Pull request description:

  Since levedb v1.21:
  - the `__STDC_LIMIT_MACROS` macro definition is unneeded;
    commit: [50fbc87e8c62a816d6afd4740e0652a13ac6dc3e](bitcoin-core/leveldb-subtree@50fbc87)

  - the `LEVELDB_ATOMIC_PRESENT` macro is unused;
    commit: [04f39105c5a418905da8b7657ca244d672c99d3b](bitcoin-core/leveldb-subtree@04f3910)

ACKs for top commit:
  sipsorcery:
    tACK 393be86.
  jarolrod:
    crACK 393be86

Tree-SHA512: 845bb310474cf17f9f0f70a585054a222914313a0fc28c42a023133250efbb9ab7fb2d1ebb355943233b6fd24d5bddfb73fbbf5dce71ea232ae652af8b695149

Author: fanquake

build_msvc/libleveldb/libleveldb.vcxproj

@@ -50,7 +50,7 @@
   </ItemGroup>
   <ItemDefinitionGroup>
      <ClCompile>
-       <PreprocessorDefinitions>HAVE_CRC32C=0;HAVE_SNAPPY=0;__STDC_LIMIT_MACROS;LEVELDB_IS_BIG_ENDIAN=0;_UNICODE;UNICODE;_CRT_NONSTDC_NO_DEPRECATE;LEVELDB_PLATFORM_WINDOWS;LEVELDB_ATOMIC_PRESENT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+       <PreprocessorDefinitions>HAVE_CRC32C=0;HAVE_SNAPPY=0;LEVELDB_IS_BIG_ENDIAN=0;_UNICODE;UNICODE;_CRT_NONSTDC_NO_DEPRECATE;LEVELDB_PLATFORM_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
        <DisableSpecificWarnings>4244;4267</DisableSpecificWarnings>
        <AdditionalIncludeDirectories>..\..\src\leveldb;..\..\src\leveldb\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
      </ClCompile>