diff --git a/stdlib/strscan/0/string_scanner.rbs b/stdlib/strscan/0/string_scanner.rbs
index 593224ad1..e0419e148 100644
--- a/stdlib/strscan/0/string_scanner.rbs
+++ b/stdlib/strscan/0/string_scanner.rbs
@@ -675,14 +675,6 @@ class StringScanner
   #
   def check_until: (Regexp) -> String
 
-  # <!--
-  #   rdoc-file=ext/strscan/strscan.c
-  #   - clear()
-  # -->
-  # Equivalent to #terminate. This method is obsolete; use #terminate instead.
-  #
-  def clear: () -> void
-
   # <!--
   #   rdoc-file=ext/strscan/strscan.c
   #   - concat(more_string) -> self
@@ -706,14 +698,6 @@ class StringScanner
   #
   alias concat <<
 
-  # <!--
-  #   rdoc-file=ext/strscan/strscan.c
-  #   - empty?()
-  # -->
-  # Equivalent to #eos?. This method is obsolete, use #eos? instead.
-  #
-  def empty?: () -> bool
-
   # <!--
   #   rdoc-file=ext/strscan/strscan.c
   #   - eos? -> true or false
@@ -818,14 +802,6 @@ class StringScanner
   #
   def get_byte: () -> String?
 
-  # <!--
-  #   rdoc-file=ext/strscan/strscan.c
-  #   - getbyte()
-  # -->
-  # Equivalent to #get_byte. This method is obsolete; use #get_byte instead.
-  #
-  def getbyte: () -> String?
-
   # <!--
   #   rdoc-file=ext/strscan/strscan.c
   #   - getch()
@@ -1012,14 +988,6 @@ class StringScanner
   #
   def peek: (Integer) -> String
 
-  # <!--
-  #   rdoc-file=ext/strscan/strscan.c
-  #   - peep(p1)
-  # -->
-  # Equivalent to #peek. This method is obsolete; use #peek instead.
-  #
-  def peep: (Integer) -> String
-
   # <!-- rdoc-file=ext/strscan/strscan.c -->
   # call-seq:
   #  pos -> byte_position
@@ -1217,15 +1185,6 @@ class StringScanner
   #
   def rest_size: () -> Integer
 
-  # <!--
-  #   rdoc-file=ext/strscan/strscan.c
-  #   - restsize()
-  # -->
-  # `s.restsize` is equivalent to `s.rest_size`. This method is obsolete; use
-  # #rest_size instead.
-  #
-  def restsize: () -> Integer
-
   # <!--
   #   rdoc-file=ext/strscan/strscan.c
   #   - scan(p1)