west: build.py: Remove len() from conditional to fix pylint warning

Non-empty sequences are truthy in Python, so len() can be skipped.

Fixing pylint warnings for a CI check.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>

scripts/west_commands/build.py

@@ -198,7 +198,7 @@ class Build(Forceable):
             # passed on to CMake
             if remainder[0] == _ARG_SEPARATOR:
                 remainder = remainder[1:]
-            if len(remainder):
+            if remainder:
                 self.args.cmake_opts = remainder
         except IndexError:
             return