simplify code

src/poetry/console/commands/install.py

@@ -155,25 +155,6 @@ def handle(self) -> int:
         if self.option("no-root"):
             return 0
 
-        # Prior to https://github.com/python-poetry/poetry-core/pull/629
-        # the existence of a module/package was checked when creating the
-        # EditableBuilder. Afterwards, the existence is checked after
-        # executing the build script (if there is one),
-        # i.e. during EditableBuilder.build().
-        try:
-            builder = EditableBuilder(self.poetry, self.env, self.io)
-        except (ModuleOrPackageNotFound, FileNotFoundError) as e:
-            # This is likely due to the fact that the project is an application
-            # not following the structure expected by Poetry
-            # If this is a true error it will be picked up later by build anyway.
-            self.line_error(
-                f"The current project could not be installed: <error>{e}</error>\n"
-                "If you do not want to install the current project"
-                " use <c1>--no-root</c1>",
-                style="warning",
-            )
-            return 0
-
         log_install = (
             "<b>Installing</> the current project:"
             f" <c1>{self.poetry.package.pretty_name}</c1>"
@@ -189,7 +170,13 @@ def handle(self) -> int:
             self.line("")
             return 0
 
+        # Prior to https://github.com/python-poetry/poetry-core/pull/629
+        # the existence of a module/package was checked when creating the
+        # EditableBuilder. Afterwards, the existence is checked after
+        # executing the build script (if there is one),
+        # i.e. during EditableBuilder.build().
         try:
+            builder = EditableBuilder(self.poetry, self.env, self.io)
             builder.build()
         except (ModuleOrPackageNotFound, FileNotFoundError) as e:
             # This is likely due to the fact that the project is an application