Remove headers not being used directly

Fix clangd warnings regarding headers not being used directly.

src/button/button-png.c

@@ -12,9 +12,7 @@
 #include "buffer.h"
 #include "button/button-png.h"
 #include "button/common.h"
-#include "common/file-helpers.h"
 #include "labwc.h"
-#include "theme.h"
 
 /*
  * cairo_image_surface_create_from_png() does not gracefully handle non-png

src/button/button-svg.c

@@ -12,9 +12,7 @@
 #include "buffer.h"
 #include "button/button-svg.h"
 #include "button/common.h"
-#include "common/file-helpers.h"
 #include "labwc.h"
-#include "theme.h"
 
 void
 button_svg_load(const char *button_name, struct lab_data_buffer **buffer,

src/button/button-xbm.c

@@ -15,11 +15,8 @@
 #include <drm_fourcc.h>
 #include "button/button-xbm.h"
 #include "button/common.h"
-#include "common/dir.h"
 #include "common/grab-file.h"
 #include "common/mem.h"
-#include "config/rcxml.h"
-#include "theme.h"
 #include "buffer.h"
 
 enum token_type {

src/common/font.c

@@ -1,5 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#include <assert.h>
 #include <cairo.h>
 #include <drm_fourcc.h>
 #include <pango/pangocairo.h>

src/common/parse-bool.c

@@ -1,5 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#include <string.h>
 #include <strings.h>
 #include <wlr/util/log.h>
 #include "common/parse-bool.h"

src/common/spawn.c

@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <glib.h>
 #include <signal.h>
-#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/wait.h>

src/config/rcxml.c

@@ -1,8 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
 #include <assert.h>
-#include <ctype.h>
-#include <errno.h>
 #include <fcntl.h>
 #include <libxml/parser.h>
 #include <libxml/tree.h>

src/config/session.c

@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
-#include <ctype.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -9,7 +8,6 @@
 #include <wlr/util/log.h>
 #include "common/buf.h"
 #include "common/file-helpers.h"
-#include "common/mem.h"
 #include "common/spawn.h"
 #include "common/string-helpers.h"
 #include "config/session.h"

src/desktop.c

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #include "config.h"
 #include <assert.h>
-#include "common/list.h"
 #include "common/scene-helpers.h"
 #include "dnd.h"
 #include "labwc.h"

src/dnd.c

@@ -3,7 +3,6 @@
 #include <wlr/types/wlr_data_device.h>
 #include <wlr/types/wlr_scene.h>
 #include <wlr/util/log.h>
-#include "common/mem.h"
 #include "dnd.h"
 #include "input/cursor.h"
 #include "labwc.h"  /* for struct seat */

src/layers.c

@@ -15,7 +15,6 @@
 #include <wlr/types/wlr_layer_shell_v1.h>
 #include <wlr/util/log.h>
 #include "common/macros.h"
-#include "common/list.h"
 #include "common/mem.h"
 #include "config/rcxml.h"
 #include "layers.h"

src/menu/menu.c

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
 #include <assert.h>
-#include <ctype.h>
 #include <libxml/parser.h>
 #include <libxml/tree.h>
 #include <stdio.h>

src/output.c

@@ -7,7 +7,6 @@
  */
 
 #define _POSIX_C_SOURCE 200809L
-#include <assert.h>
 #include <strings.h>
 #include <wlr/backend/drm.h>
 #include <wlr/backend/headless.h>

src/snap.c

@@ -1,5 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#include <assert.h>
 #include <strings.h>
 #include <wlr/util/box.h>
 #include "labwc.h"

src/theme.c

@@ -9,10 +9,8 @@
 #include "config.h"
 #include <assert.h>
 #include <cairo.h>
-#include <ctype.h>
 #include <drm_fourcc.h>
 #include <glib.h>
-#include <math.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>

src/view-impl-common.c

@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /* view-impl-common.c: common code for shell view->impl functions */
-#include <assert.h>
 #include <stdio.h>
 #include <strings.h>
 #include "common/list.h"

src/window-rules.c

@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
-#include "config.h"
 #include <assert.h>
 #include <stdbool.h>
 #include <cairo.h>