diff --git a/Makefile b/Makefile
index 89567e4b66..dca63dd2d5 100644
--- a/Makefile
+++ b/Makefile
@@ -476,11 +476,6 @@ all::
 # `compat/fsmonitor/fsm-listen-<name>.c` that implements the
 # `fsm_listen__*()` routines.
 #
-# If your platform has os-specific ways to tell if a repo is incompatible with
-# fsmonitor (whether the hook or ipc daemon version), set FSMONITOR_OS_SETTINGS
-# to the "<name>" of the corresponding `compat/fsmonitor/fsm-settings-<name>.c`
-# that implements the `fsm_os_settings__*()` routines.
-#
 # Define DEVELOPER to enable more compiler warnings. Compiler version
 # and family are auto detected, but could be overridden by defining
 # COMPILER_FEATURES (see config.mak.dev). You can still set
@@ -1956,11 +1951,6 @@ ifdef FSMONITOR_DAEMON_BACKEND
 	COMPAT_OBJS += compat/fsmonitor/fsm-listen-$(FSMONITOR_DAEMON_BACKEND).o
 endif
 
-ifdef FSMONITOR_OS_SETTINGS
-	COMPAT_CFLAGS += -DHAVE_FSMONITOR_OS_SETTINGS
-	COMPAT_OBJS += compat/fsmonitor/fsm-settings-$(FSMONITOR_OS_SETTINGS).o
-endif
-
 ifeq ($(TCLTK_PATH),)
 NO_TCLTK = NoThanks
 endif
@@ -2845,9 +2835,6 @@ GIT-BUILD-OPTIONS: FORCE
 ifdef FSMONITOR_DAEMON_BACKEND
 	@echo FSMONITOR_DAEMON_BACKEND=\''$(subst ','\'',$(subst ','\'',$(FSMONITOR_DAEMON_BACKEND)))'\' >>$@+
 endif
-ifdef FSMONITOR_OS_SETTINGS
-	@echo FSMONITOR_OS_SETTINGS=\''$(subst ','\'',$(subst ','\'',$(FSMONITOR_OS_SETTINGS)))'\' >>$@+
-endif
 ifdef TEST_OUTPUT_DIRECTORY
 	@echo TEST_OUTPUT_DIRECTORY=\''$(subst ','\'',$(subst ','\'',$(TEST_OUTPUT_DIRECTORY)))'\' >>$@+
 endif
diff --git a/compat/fsmonitor/fsm-settings-win32.c b/compat/fsmonitor/fsm-settings-win32.c
deleted file mode 100644
index 176a6f5726..0000000000
--- a/compat/fsmonitor/fsm-settings-win32.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include "cache.h"
-#include "config.h"
-#include "repository.h"
-#include "fsmonitor-settings.h"
-
-enum fsmonitor_reason fsm_os__incompatible(struct repository *r)
-{
-	return FSMONITOR_REASON_ZERO;
-}
diff --git a/config.mak.uname b/config.mak.uname
index f5935227e2..a27ccb583d 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -423,7 +423,6 @@ ifeq ($(uname_S),Windows)
 	#
 	#   SNPRINTF_RETURNS_BOGUS = YesPlease
 	FSMONITOR_DAEMON_BACKEND = win32
-	FSMONITOR_OS_SETTINGS = win32
 	NO_SVN_TESTS = YesPlease
 	RUNTIME_PREFIX = YesPlease
 	HAVE_WPGMPTR = YesWeDo
@@ -612,7 +611,6 @@ ifneq (,$(findstring MINGW,$(uname_S)))
 	NO_MKDTEMP = YesPlease
 	NO_SVN_TESTS = YesPlease
 	FSMONITOR_DAEMON_BACKEND = win32
-	FSMONITOR_OS_SETTINGS = win32
 	RUNTIME_PREFIX = YesPlease
 	HAVE_WPGMPTR = YesWeDo
 	NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease
diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 8bb57ead5a..79e4b0dae3 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -300,11 +300,6 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
 	list(APPEND compat_SOURCES compat/fsmonitor/fsm-listen-darwin.c)
 endif()
 
-if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
-	add_compile_definitions(HAVE_FSMONITOR_OS_SETTINGS)
-	list(APPEND compat_SOURCES compat/fsmonitor/fsm-settings-win32.c)
-endif()
-
 set(EXE_EXTENSION ${CMAKE_EXECUTABLE_SUFFIX})
 
 #header checks
diff --git a/fsmonitor-settings.c b/fsmonitor-settings.c
index 408c3f159d..5a803a41d5 100644
--- a/fsmonitor-settings.c
+++ b/fsmonitor-settings.c
@@ -33,18 +33,6 @@ static int check_for_incompatible(struct repository *r)
 		return 1;
 	}
 
-#ifdef HAVE_FSMONITOR_OS_SETTINGS
-	{
-		enum fsmonitor_reason reason;
-
-		reason = fsm_os__incompatible(r);
-		if (reason != FSMONITOR_REASON_ZERO) {
-			set_incompatible(r, reason);
-			return 1;
-		}
-	}
-#endif
-
 	return 0;
 }
 
diff --git a/fsmonitor-settings.h b/fsmonitor-settings.h
index 813a540619..eb45524b1f 100644
--- a/fsmonitor-settings.h
+++ b/fsmonitor-settings.h
@@ -29,17 +29,4 @@ enum fsmonitor_reason fsm_settings__get_reason(struct repository *r,
 
 struct fsmonitor_settings;
 
-#ifdef HAVE_FSMONITOR_OS_SETTINGS
-/*
- * Ask platform-specific code whether the repository is incompatible
- * with fsmonitor (both hook and ipc modes).  For example, if the working
- * directory is on a remote volume and mounted via a technology that does
- * not support notification events.
- *
- * fsm_os__* routines should considered private to fsm_settings__
- * routines.
- */
-enum fsmonitor_reason fsm_os__incompatible(struct repository *r);
-#endif /* HAVE_FSMONITOR_OS_SETTINGS */
-
 #endif /* FSMONITOR_SETTINGS_H */