SL-18837: We no longer build Windows apr-iconv -- don't reference.

With VS 2022 on Windows GitHub Actions runners, we can't build apr_suite at
all with the upstream .sln / .vcxproj files, so we had to switch to
"experimental" CMake support. However there's no CMakeLists.txt file for
apr-iconv, so the Windows package omits that library.

indra/cmake/APR.cmake

@@ -16,7 +16,6 @@ if (WINDOWS)
   endif (LLCOMMON_LINK_SHARED)
   target_link_libraries( ll::apr INTERFACE
           ${ARCH_PREBUILT_DIRS_RELEASE}/${APR_selector}apr-1.lib
-          ${ARCH_PREBUILT_DIRS_RELEASE}/${APR_selector}apriconv-1.lib
           ${ARCH_PREBUILT_DIRS_RELEASE}/${APR_selector}aprutil-1.lib
           )
 elseif (DARWIN)
@@ -37,7 +36,6 @@ else (WINDOWS)
   target_link_libraries( ll::apr INTERFACE
           apr-1
           aprutil-1
-          iconv
           uuid
           rt
           )

indra/cmake/Copy3rdPartyLibs.cmake

@@ -57,7 +57,6 @@ if(WINDOWS)
         openjp2.dll
         libapr-1.dll
         libaprutil-1.dll
-        libapriconv-1.dll
         nghttp2.dll
         libhunspell.dll
         uriparser.dll