chore: remove unused hashtable and dead code

Remove hashtable module and tests (unused in runtime). Remove unused
variables mycolour, direction, output_scale_factor, and dead local p.

CMakeLists.txt

@@ -54,7 +54,6 @@ add_custom_command(
 set(SOURCES
     tkeyboard.c
     tpointer.c
-    hashtable.c
     toml.c
     config.c
     grid.c
@@ -91,25 +90,7 @@ target_compile_options(wlgol PRIVATE
 
 
 
-add_executable(test_hashtable tests/test_hashtable.c
-    ${SOURCES}
-)
-target_link_libraries(test_hashtable
-    wayland-client
-    wayland-cursor
-    ${XKBCOMMON_LIBRARIES}
-)
-target_include_directories(test_hashtable
-    PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/include
-    PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include
-    PUBLIC ${XKBCOMMON_INCLUDE_DIRS}
-)
-target_compile_options(test_hashtable PRIVATE
-    ${XKBCOMMON_CFLAGS_OTHER}
-)
-
 enable_testing()
-add_test(NAME Hashtable COMMAND test_hashtable)
 
 add_executable(test_config tests/test_config.c
     ${SOURCES}