Delete buggy stat(::Integer) method (#54855)

"Where did someone get a RawFD as an integer anyway?" -@StefanKarpinski

See also #51711

Fixes #51710

Author: LilithHafner

base/deprecated.jl

@@ -531,6 +531,4 @@ end
 
 # BEGIN 1.12 deprecations
 
-@deprecate stat(fd::Integer) stat(RawFD(fd))
-
 # END 1.12 deprecations

test/file.jl

@@ -459,6 +459,11 @@ end
     end
 end
 
+# Issue #51710 and PR #54855
+@test_throws MethodError stat(7)
+@test_throws MethodError ispath(false)
+@test_throws MethodError ispath(1)
+
 # On windows the filesize of a folder is the accumulation of all the contained
 # files and is thus zero in this case.
 if Sys.iswindows()