remove redundant checks

Author: scivision

+stdlib/device.m

@@ -9,16 +9,14 @@
 
 i = [];
 
-if stdlib.exists(path)
-  if stdlib.isoctave()
-    [s, err] = stat(path);
-    if err == 0
-      i = s.dev;
-    end
-  elseif stdlib.has_java() && stdlib.java_api() >= 11
-    % Java 1.8 is buggy in some corner cases, so we require at least 11.
-    i = java.nio.file.Files.getAttribute(javaPathObject(path), "unix:dev", javaLinkOption());
+if stdlib.isoctave()
+  [s, err] = stat(path);
+  if err == 0
+    i = s.dev;
   end
+elseif isunix() && stdlib.has_java() && stdlib.java_api() >= 11
+  % Java 1.8 is buggy in some corner cases, so we require at least 11.
+  i = java.nio.file.Files.getAttribute(javaPathObject(path), "unix:dev", javaLinkOption());
 end
 
 end

+stdlib/filesystem_type.m

@@ -11,8 +11,6 @@
   p {mustBeTextScalar} = ''
 end
 
-assert(stdlib.exists(p), "Path does not exist: %s", p);
-
 op = javaPathObject(p);
 
 if stdlib.isoctave()

+stdlib/get_owner.m

@@ -13,8 +13,6 @@
 % https://docs.oracle.com/en/java/javase/22/docs/api/java.base/java/nio/file/Files.html#getOwner(java.nio.file.Path,java.nio.file.LinkOption...)
 % https://docs.oracle.com/en/java/javase/22/docs/api/java.base/java/nio/file/LinkOption.html
 
-assert(stdlib.exists(p), "Path %s does not exist.", p)
-
 op = javaPathObject(p);
 opt = javaLinkOption();
 

+stdlib/inode.m

@@ -9,16 +9,14 @@
 
 i = [];
 
-if stdlib.exists(path)
-  if stdlib.isoctave()
-    [s, err] = stat(path);
-    if err == 0
-      i = s.ino;
-    end
-  elseif stdlib.has_java() && stdlib.java_api() >= 11
-    % Java 1.8 is buggy in some corner cases, so we require at least 11.
-    i = java.nio.file.Files.getAttribute(javaPathObject(path), "unix:ino", javaLinkOption());
+if stdlib.isoctave()
+  [s, err] = stat(path);
+  if err == 0
+    i = s.ino;
   end
+elseif isunix() && stdlib.has_java() && stdlib.java_api() >= 11
+  % Java 1.8 is buggy in some corner cases, so we require at least 11.
+  i = java.nio.file.Files.getAttribute(javaPathObject(path), "unix:ino", javaLinkOption());
 end
 
 end