shared/pretty-print: drop unused flag

0895e87348e5fc02f50498cad5922eb3eb172323 removed the last (only?) use of
CAT_MAIN_FILE_OPTIONAL, except for tests. All callers first check if the main
file exists on their own, so this code was effectively dead.

I want to repopulate the enum in later commits, so a dummy flag is added
to allow the code to compile.

3 files changed, 3 insertions, 8 deletions

diff --git a/src/shared/pretty-print.c b/src/shared/pretty-print.c
index a354ae4983..55a2570ddf 100644
--- a/src/shared/pretty-print.c
+++ b/src/shared/pretty-print.c
@@ -171,12 +171,7 @@ int cat_files(const char *file, char **dropins, CatFlags flags) {
 
         if (file) {
                 r = cat_file(file, false);
-                if (r == -ENOENT && (flags & CAT_FLAGS_MAIN_FILE_OPTIONAL))
-                        printf("%s# Configuration file %s not found%s\n",
-                               ansi_highlight_magenta(),
-                               file,
-                               ansi_normal());
-                else if (r < 0)
+                if (r < 0)
                         return log_warning_errno(r, "Failed to cat %s: %m", file);
         }
 
diff --git a/src/shared/pretty-print.h b/src/shared/pretty-print.h
index 45644da67d..0012dc8835 100644
--- a/src/shared/pretty-print.h
+++ b/src/shared/pretty-print.h
@@ -15,7 +15,7 @@ int terminal_urlify_path(const char *path, const char *text, char **ret);
 int terminal_urlify_man(const char *page, const char *section, char **ret);
 
 typedef enum CatFlags {
-        CAT_FLAGS_MAIN_FILE_OPTIONAL = 1 << 0,
+        CAT_DUMMY_FLAG,  // This flag only exists a as a placeholder because empty enums are not allowed
 } CatFlags;
 
 int cat_files(const char *file, char **dropins, CatFlags flags);
diff --git a/src/test/test-pretty-print.c b/src/test/test-pretty-print.c
index 7c6c6c7ad1..ece1a161e4 100644
--- a/src/test/test-pretty-print.c
+++ b/src/test/test-pretty-print.c
@@ -25,7 +25,7 @@ TEST(terminal_urlify) {
 
 TEST(cat_files) {
         assert_se(cat_files("/no/such/file", NULL, 0) == -ENOENT);
-        assert_se(cat_files("/no/such/file", NULL, CAT_FLAGS_MAIN_FILE_OPTIONAL) == 0);
+        assert_se(cat_files(NULL, NULL, 0) == 0);
 
         if (access("/etc/fstab", R_OK) >= 0)
                 assert_se(cat_files("/etc/fstab", STRV_MAKE("/etc/fstab", "/etc/fstab"), 0) == 0);