diff --git a/scss/_custom.scss b/scss/_custom.scss
deleted file mode 100644
index 88ccf202e4..0000000000
--- a/scss/_custom.scss
+++ /dev/null
@@ -1,4 +0,0 @@
-// Bootstrap overrides
-//
-// Copy variables from `_variables.scss` to this file to override default values
-// without modifying source files.
diff --git a/scss/bootstrap-grid.scss b/scss/bootstrap-grid.scss
index 2ba6858775..f3699bc15d 100644
--- a/scss/bootstrap-grid.scss
+++ b/scss/bootstrap-grid.scss
@@ -22,7 +22,6 @@ html {
   box-sizing: inherit;
 }
 
-@import "custom";
 @import "variables";
 
 //
diff --git a/scss/bootstrap-reboot.scss b/scss/bootstrap-reboot.scss
index 5867f08ec9..cdf59ab685 100644
--- a/scss/bootstrap-reboot.scss
+++ b/scss/bootstrap-reboot.scss
@@ -2,7 +2,6 @@
 //
 // Includes only Normalize and our custom Reboot reset.
 
-@import "custom";
 @import "variables";
 @import "mixins";
 
diff --git a/scss/bootstrap.scss b/scss/bootstrap.scss
index f7577f5c79..9ab2210b31 100644
--- a/scss/bootstrap.scss
+++ b/scss/bootstrap.scss
@@ -6,7 +6,6 @@
  */
 
 // Core variables and mixins
-@import "custom";
 @import "variables";
 @import "mixins";