Fixed emscripten compilation

os/emscripten/cmake/FindLibLZMA.cmake

@@ -1,20 +0,0 @@
-# LibLZMA is a recent addition to the emscripten SDK, so it is possible
-# someone hasn't updated their SDK yet. Test out if the SDK supports LibLZMA.
-include(CheckCXXSourceCompiles)
-set(CMAKE_REQUIRED_FLAGS "-sUSE_LIBLZMA=1")
-
-check_cxx_source_compiles("
-    #include <lzma.h>
-    int main() { return 0; }"
-    LIBLZMA_FOUND
-)
-
-if (LIBLZMA_FOUND)
-        add_library(LibLZMA::LibLZMA INTERFACE IMPORTED)
-        set_target_properties(LibLZMA::LibLZMA PROPERTIES
-                INTERFACE_COMPILE_OPTIONS "-sUSE_LIBLZMA=1"
-                INTERFACE_LINK_LIBRARIES "-sUSE_LIBLZMA=1"
-        )
-else()
-        message(WARNING "You are using an emscripten SDK without LibLZMA support. Many savegames won't be able to load in OpenTTD. Please apply 'emsdk-liblzma.patch' to your local emsdk installation.")
-endif()

os/emscripten/cmake/harfbuzz.pc

@@ -0,0 +1,4 @@
+Name: harfbuzz
+Description: HarfBuzz text shaping library
+Version: 2.8.1
+Libs: -lharfbuzz