installation fixes

Makefile

@@ -16,10 +16,6 @@ clean:
 
 build: git-secret
 
-install: clean build
-	@chmod +x "./utils/install.sh"
-	@sudo "./utils/install.sh" "$(PREFIX)"
-
 #
 # Testing:
 #

man/man7/git-secret.7.ronn

@@ -48,11 +48,6 @@ There are several ways to install `git-secret`:
 1. Add line `antigen bundle sobolevn/git-secret` to your `.zshrc`
 2. Run `source ~/.zshrc` or reopen the terminal
 
-**`make install`**
-
-1. Download the latest realease [here](https://github.com/sobolevn/git-secret/releases)
-2. Unpack and run `make install PREFIX="your/installation/path"`, note that this command may require `sudo`
-
 **The hard way**
 
 1. Clone the repository first: `git clone https://github.com/sobolevn/git-secret.git git-secret`