diff --git a/build/icu/mh-msys-msvc b/build/icu/mh-msys-msvc
deleted file mode 100644
index d19c4b2c0..000000000
--- a/build/icu/mh-msys-msvc
+++ /dev/null
@@ -1,84 +0,0 @@
-# ICU's mh-cygwin-msvc doesn't work with msys or Visual Studio 2012.
-# There's a whole bunch of incompatibilities, so this is a complete replacement
-# rather than just a patch.
-
-sbindir=$(bindir)
-CPPFLAGS += -DU_STATIC_IMPLEMENTATION -DUCONFIG_NO_LEGACY_CONVERSION=1 -DU_ENABLE_DYLOAD=0 -DUCONFIG_NO_FILE_IO=1 -DU_CHARSET_IS_UTF8=1
-
-ifeq ($(ENABLE_DEBUG),1)
-CPPFLAGS+=-D_DEBUG=1
-CFLAGS+=-Z7
-CXXFLAGS+=-Z7
-else
-CPPFLAGS+=-DU_RELEASE=1
-endif
-
-CFLAGS+=-GF -nologo
-CXXFLAGS+=-GF -nologo -EHsc -Zc:wchar_t
-CPPFLAGS+=-D_CRT_SECURE_NO_DEPRECATE
-DEFS+=-DWIN32 -DCYGWINMSVC
-LDFLAGS+=-nologo
-
-COMPILE.c=	$(CC) $(CPPFLAGS) $(DEFS) $(CFLAGS) -c
-COMPILE.cc=	$(CXX) $(CPPFLAGS) $(DEFS) $(CXXFLAGS) -c
-LINK.c=		LINK.EXE -subsystem:console $(LDFLAGS)
-LINK.cc=	LINK.EXE -subsystem:console $(LDFLAGS)
-
-OUTOPT = -out:
-
-LIBSICU = $(STATIC_PREFIX)$(ICUPREFIX)
-A = lib
-STATIC_O=o
-
-AR = LIB.EXE
-ARFLAGS := -nologo $(ARFLAGS:r=)
-RANLIB = ls -s
-AR_OUTOPT = -OUT:
-
-IMPORT_LIB_EXT = .lib
-
-LIBPREFIX=
-DEFAULT_LIBS = advapi32.lib
-
-DATA_STUBNAME = dt
-I18N_STUBNAME = in
-LIBICU = $(STATIC_PREFIX_WHEN_USED)$(ICUPREFIX)
-
-ifeq ($(wildcard $(LIBDIR)/$(LIBICU)$(DATA_STUBNAME)$(ICULIBSUFFIX).lib),)
-LIBICUDT=	$(top_builddir)/stubdata/$(LIBICU)$(DATA_STUBNAME)$(ICULIBSUFFIX).lib
-else
-LIBICUDT=	$(LIBDIR)/$(LIBICU)$(DATA_STUBNAME)$(ICULIBSUFFIX).lib
-endif
-LIBICUUC=	$(LIBDIR)/$(LIBICU)$(COMMON_STUBNAME)$(ICULIBSUFFIX).lib $(LIBICUDT)
-LIBICUI18N=	$(LIBDIR)/$(LIBICU)$(I18N_STUBNAME)$(ICULIBSUFFIX).lib
-LIBICULE=	$(LIBDIR)/$(LIBICU)$(LAYOUT_STUBNAME)$(ICULIBSUFFIX).lib
-LIBICULX=	$(LIBDIR)/$(LIBICU)$(LAYOUTEX_STUBNAME)$(ICULIBSUFFIX).lib
-LIBICUIO=	$(LIBDIR)/$(LIBICU)$(IO_STUBNAME)$(ICULIBSUFFIX).lib
-LIBICUTOOLUTIL=	$(LIBDIR)/$(LIBICU)$(TOOLUTIL_STUBNAME)$(ICULIBSUFFIX).lib
-
-LDFLAGSICUDT+=	/base:"0x4ad00000" -NOENTRY# The NOENTRY option is required for creating a resource-only DLL.
-LDFLAGSICUUC=	/base:"0x4a800000"# in-uc = 1MB
-LDFLAGSICUI18N=	/base:"0x4a900000"# io-in = 2MB
-LDFLAGSICUIO=	/base:"0x4ab00000"# le-io = 1MB
-LDFLAGSICULE=	/base:"0x4ac00000"# lx-le = 512KB
-LDFLAGSICULX=	/base:"0x4ac80000"
-LDFLAGSICUTOOLUTIL=	/base:"0x4ac00000"# Same as layout. Layout and tools probably won't mix.
-
-%.o: $(srcdir)/%.c
-	$(COMPILE.c) $(STATICCPPFLAGS) $(STATICCFLAGS) -Fo$@ $<
-
-%.o: $(srcdir)/%.cpp
-	$(COMPILE.cc) $(STATICCPPFLAGS) $(STATICCXXFLAGS) -Fo$@ $<
-
-%.res : $(srcdir)/%.rc
-	rc.exe -fo$@ $(CPPFLAGS) $<
-
-ICUPKGDATA_INSTALL_DIR = $(libdir)
-
-ICULIBSUFFIX_VERSION = $(LIB_VERSION_MAJOR)
-
-INSTALL-L=$(INSTALL_PROGRAM)
-
-LDLIBRARYPATH_ENVVAR = PATH
-
-PKGDATA_INVOKE_OPTS = MAKEFLAGS=