Revert "bootstrap.py: respect crt-static"

This reverts commit 5ecf29df05.

src/bootstrap/bootstrap.py

@@ -489,7 +489,7 @@ class RustBuild(object):
         """
         return os.path.join(self.build_dir, self.build, "stage0")
 
-    def get_toml(self, key, section=None):
+    def get_toml(self, key):
         """Returns the value of the given key in config.toml, otherwise returns None
 
         >>> rb = RustBuild()
@@ -501,29 +501,12 @@ class RustBuild(object):
 
         >>> rb.get_toml("key3") is None
         True
-
-        Optionally also matches the section the key appears in
-
-        >>> rb.config_toml = '[a]\\nkey = "value1"\\n[b]\\nkey = "value2"'
-        >>> rb.get_toml('key', 'a')
-        'value1'
-        >>> rb.get_toml('key', 'b')
-        'value2'
-        >>> rb.get_toml('key', 'c') is None
-        True
         """
-
-        cur_section = None
         for line in self.config_toml.splitlines():
-            section_match = re.match(r'^\s*\[(.*)\]\s*$', line)
-            if section_match is not None:
-                cur_section = section_match.group(1)
-
             match = re.match(r'^{}\s*=(.*)$'.format(key), line)
             if match is not None:
                 value = match.group(1)
-                if section is None or section == cur_section:
-                    return self.get_string(value) or value.strip()
+                return self.get_string(value) or value.strip()
         return None
 
     def cargo(self):
@@ -606,17 +589,7 @@ class RustBuild(object):
         env["LIBRARY_PATH"] = os.path.join(self.bin_root(), "lib") + \
             (os.pathsep + env["LIBRARY_PATH"]) \
             if "LIBRARY_PATH" in env else ""
-        env["RUSTFLAGS"] = "-Cdebuginfo=2 "
-
-        build_section = "target.{}".format(self.build_triple())
-        target_features = []
-        if self.get_toml("crt-static", build_section) == "true":
-            target_features += ["+crt-static"]
-        elif self.get_toml("crt-static", build_section) == "false":
-            target_features += ["-crt-static"]
-        if target_features:
-            env["RUSTFLAGS"] += "-C target-feature=" + (",".join(target_features)) + " "
-
+        env["RUSTFLAGS"] = "-Cdebuginfo=2"
         env["PATH"] = os.path.join(self.bin_root(), "bin") + \
             os.pathsep + env["PATH"]
         if not os.path.isfile(self.cargo()):